Articles
Articles are a collaborative effort to provide a single canonical page on all topics relevant to the practice of radiology. As such, articles are written and edited by countless contributing members over a period of time. A global group of dedicated editors oversee accuracy, consulting with expert advisers, and constantly reviewing additions.
672 results found
Article
Broca aphasia
Broca aphasia, also known as expressive aphasia or motor aphasia, is a type of non-fluent aphasia usually caused by injury (e.g. stroke) to Broca's area and the surrounding frontal fields 1,2.
Clinical presentation
fluency: non-fluent and effortful speech with agrammatism 1,2
comprehension: r...
Article
Chudley-McCullough syndrome
Chudley-McCullough syndrome is an extremely rare autosomal recessive disorder characterized by early-onset sensorineural hearing loss and a distinctive combination of structural brain abnormalities, with relative preservation of psychomotor development.
Epidemiology
Chudley-McCullough syndrome...
Article
Pudendal nerve entrapment syndrome
Pudendal nerve entrapment (PNE) syndrome is a rare and under-diagnosed condition associated with chronic pain, sexual dysfunction and impaired sphincter control due to compression of the pudendal nerve.
Anatomy
The pudendal nerve arises from S2-S4 roots of the sacral plexus, carrying both s...
Article
Orbital apex syndrome
Orbital apex syndrome, also known as Jacod syndrome, is a constellation of clinical findings, presenting as a result of several potential pathologies that compress or otherwise affect structures passing through the orbital apex.
Clinical presentation
Presentation is according to the structures...
Article
Mowat-Wilson syndrome
Mowat-Wilson syndrome is a rare disorder with a broad spectrum of congenital anomalies. It is caused by an abnormality in the ZFHX1B gene. Anomalies that may be recognized at birth or 1st year of life include:
CNS
seizures
intellectual disability
distinct facial profile
genitourinary abnor...
Article
PIK3CA-related overgrowth spectrum (PROS)
PIK3CA-related overgrowth spectrum (PROS) is a broad group of segmental overgrowth disorders that can occur with or without associated vascular anomalies, caused by activating mutations in the PIK3CA gene, which are also responsible for the vast majority of isolated lymphatic malformations and s...
Article
Reye syndrome
Reye syndrome is a rare pediatric condition characterized by acute onset encephalopathy, severe vomiting and fatty liver failure. It typically presents in children recovering from a viral illness, most commonly influenza or chickenpox 1.
Epidemiology
Reye syndrome is usually seen between the ...
Article
Achard Thiers syndrome
Achard-Thiers syndrome is a rare condition in elderly postmenopausal females, which is illustrated by androgen excess and insulin resistance secondary to type 2 diabetes mellitus.
Clinical presentation
hirsutism in older females
high serum glucose levels
proteinuria
glucosuria
polyuria
hy...
Article
Cachexia
Cachexia is a syndrome of metabolic dysfunction secondary to an underlying disease in which there is depleted skeletal muscle (sarcopenia) which may or may not be accompanied by an absolute loss of body fat.
Terminology
Cancer cachexia is specifically used to refer to the cachexia associated ...
Article
Ablepharon macrostomia syndrome
Ablepharon macrostomia syndrome is a very rare genetic disorder characterized by macrostomia, wide mouth and microblepharon.
Clinical presentation
A few of the clinical features of this syndrome are:
syndactyly
zygomatic hypoplasia
delayed speech
microtia
hypoplastic nipples
excessive ...
Article
Parkes weber syndrome
Parkes Weber syndrome is a rare disease, depicted by capillary malformation, venous malformation, arteriovenous malformation and lymphatic malformation in the affected limb, hypertrophy of the bone, as well as soft tissues of the involved limb. Multiple AV malformation of the affected limb will...
Article
Long COVID-19
Long COVID-19, also known as post-acute sequelae of SARS-CoV-2 infection (PASC) or post COVID-19 condition, is a post-viral syndrome affecting people who have recovered from COVID-19 infection. Symptoms are similar to those experienced by patients with chronic inflammatory response syndrome (CIR...
Article
Auriculocondylar syndrome
Auriculocondylar syndrome is a rare congenital syndrome primarily characterized by malformed ears and mandibular condyle aplasia/hypoplasia.
Pathology
This is an autosomal dominant genetic disease resulting from GNAI3 or PLCB4 gene defects. This affects facial development especially the 1st an...
Article
Gunal-Seber-Basaran syndrome
Gunal-Seber-Basaran syndrome is an exceedingly rare presentation of multiple bone islands, i.e. osteopoikilosis. It is characterized by dacryocystitis due to lacrimal canal stenosis with osteopoikilosis 1-3. This syndrome has an autosomal dominant inheritance 2,3.
History and etymology
The com...
Article
Elsberg syndrome
Elsberg syndrome is an established but rarely recognized cause of cauda equina syndrome and lower thoracic myelitis, associated with a presumed infectious etiology.
Epidemiology
Elsberg syndrome is likely responsible for 10% of combined cauda equina syndrome and myelitis 1.
Clinical presenta...
Article
Omodysplasia
Omodysplasia is an extremely rare short-limb skeletal dysplasia characterized by 1:
frontal bossing
depressed nasal bridge
anteverted nares
low-set ears
long philtrum
rhizomelia
short Humerus with hypoplastic distal humeri
elbow dislocation
radio-ulnar diastasis
flared metaphyses
shor...
Article
Hip spine syndrome
Hip spine syndrome is one term used to describe the clinical association between hip osteoarthritis and degenerative lumbar spinal canal stenosis due to overlapping pain distribution.
Clinical presentation
Patients with hip spine syndrome have hip and lumbar spine degeneration and present wit...
Article
Post cardiac arrest syndrome
The post cardiac arrest syndrome (PCAS) describes the clinicopathological state that manifests following most cardiac arrests. Clinically, it is manifested by a combination of neurological disturbance, multiorgan dysfunction and a systemic inflammatory response syndrome-like state.
Pathology
T...
Article
Godtfredsen syndrome
Godtfredsen syndrome is a rare syndrome of abducens and hypoglossal nerve palsies that localizes to a clival mass.
Clinical presentation
The classic clinical presentation includes 1-3:
abducens nerve palsy: diplopia worse when horizontal gaze is directed towards the affected side
hypoglossal...
Article
Prefemoral fat pad impingement syndrome
Prefemoral fat pad impingement syndrome, also known as supratrochlear / posterior suprapatellar fat pad impingement syndrome, is one of the fat pad impingement syndromes of the knee, specifically involving the prefemoral fat pad.
Clinical presentation
Patients present with anterior knee pain e...
Article
Neurogenic thoracic outlet syndrome
Neurogenic thoracic outlet syndrome is the most common cause of thoracic outlet syndrome accounting for approximately 90% of cases. It is caused by compression of the brachial plexus as it passes between the scalenus muscles, over the first rib and posteroinferior to the clavicle before entering...
Article
McCleery syndrome
McCleery syndrome is a subtype of venous thoracic outlet syndrome with symptoms resulting from compression of the subclavian vein without thrombosis (in contrast to Paget-Schroetter syndrome).
Clinical presentation
Patients with McCleery syndrome present with intermittent obstruction of the s...
Article
Snapping scapula syndrome
Snapping scapula syndrome is an uncommon condition where on scapular movement there is pain associated with an audible or palpable grinding, clicking or snapping.
Pathology
Causes include 1,2:
scapulothoracic bursitis
scapular stabilizer muscular atrophy/fibrosis, e.g. long thoracic nerve i...
Article
Post-polypectomy coagulation syndrome
Post-polypectomy coagulation syndrome occurs during a colonoscopic polypectomy procedure when electrocoagulation injury causes a transmural burn to the colon without radiographic evidence of perforation 1,2.
Terminology
Post-polypectomy coagulation syndrome is also known as post-polypectomy ...
Article
Fuhrmann syndrome
Fuhrmann syndrome is a rare non-lethal genetic limb malformation syndrome characterized by 1,2:
hypoplasia of pelvis
bowing of femur bone
polydactyly
hypoplastic fibula
symmetrical fingernail deficiency 4
tooth anomalies 5
malformed thumbs 8
It is a syndrome in which there is a partial l...
Article
Arterial tortuosity syndrome
Arterial tortuosity syndrome (ATS) is a very rare autosomal recessive connective tissue disease. It is similar to Ehlers-Danlos syndrome (EDS), the major differentiator being the general tortuous nature of the larger arteries.
Clinical presentation
It presents similarly to other collagen disor...
Article
Megalocornea
Megalocornea is a rare bilateral congenital ocular defect characterized by a corneal diameter of more than 13 mm with the deep anterior chamber and normal intraocular pressure 1-3.
Epidemiology
Megalcornea is associated with Chordin-like 1 (CHRDL1) gene mutation 1,2. It is associated with mult...
Article
Mercedes Benz craniosynostosis syndrome
Mercedes Benz pattern craniosynostosis also known as pure bilateral lambdoid and sagittal synostosis (BLSS) is a pattern of craniosynostosis 1,2.
Epidemiology
The estimated incidence is at around 0.3 - 0.7 % 3.
Clinical presentation
Cognitive function is grossly normal. Dolichocephalic hea...
Article
Multisystem inflammatory syndrome in children
Multisystem inflammatory syndrome in children (MIS-C) or pediatric inflammatory multisystem syndrome (PIMS) is an emerging pediatric disease occurring after prior SARS-CoV-2 infection and is therefore strongly associated with the ongoing COVID-19 pandemic.
Terminology
The World Health Organiz...
Article
Catel-Manzke syndrome
Catel-Manzke syndrome is a digitopalatal syndrome initially described in 1961. Inheritance pattern is unknown. Radiographic findings include micronagthia and accessory ossicles at the bases of the metacarpals.
Article
Short lasting unilateral neuralgiform headache attacks
Short lasting unilateral neuralgiform headache attacks can present with either conjunctival injection and tearing (SUNCT) or with cranial autonomic symptoms (SUNA) are rare headache syndromes that belong to a larger group of headaches known as trigeminal autonomic cephalgia and can present very ...
Article
Juvenile hyaline fibromatosis
Juvenile hyaline fibromatosis, also known as hyaline fibromatosis syndrome or infantile systemic hyalinosis is a rare autosomal recessive syndrome outlined by painful, abnormal, often deforming deposits of hyalinized fibrous material in the extracellular matrix of the skin, subcutaneous soft tis...
Article
Tapia syndrome
Tapia syndrome , also called matador's disease, is a rare syndrome that is characterized by unilateral paralysis of the tongue and vocal cords. Although the problem typically occurs after anesthetic airway management or manipulation, it can be due to central causes in rare cases 11. The syndrom...
Article
Simpson-Golabi-Behmel syndrome
Simpson-Golabi-Behmel syndrome is a rare X-linked recessive disorder of pre- and postnatal overgrowth syndrome represented by mild to severe intellectual disability 3,7, anomalies of the musculoskeletal system, cardiovascular system, central nervous system, renal and gastrointestinal tract were ...
Article
Perlman syndrome
Perlman syndrome is a rare autosomal recessive overgrowth syndrome with earlier neonatal mortality. Maximum survival documented in the literature is up to nine years 4.
Clinical presentation
Perlman syndrome is demonstrated by a combination of many clinical features which includes polyhydramni...
Article
Legius syndrome
Legius syndrome is a neurocutaneous disease, one of the RASopathies, and is characterized by multiple café-au-lait spots, with or without freckles and macrocephaly.
Epidemiology
More than 200 cases were reported between 2007 and 2013 1,3.
Although rare, it is estimated that up to 2% of patien...
Article
Riley-Day syndrome
Riley-Day syndrome, also known as familial dysautonomia, is a rare neurodevelopmental genetic autosomal recessive disorder that primarily affects the autonomic nervous system 1,9.
Epidemiology
Familial dysautonomia is more common in Ashkenazi Jews 1.
Clinical presentation
Recurrent aspiratio...
Article
Posterior nutcracker syndrome
Posterior nutcracker syndrome is a rare vascular compression disorder, in which a retroaortic left renal vein is trapped between the aorta and the vertebral column.
Clinical presentation
The most reported clinical manifestation is microscopic or macroscopic hematuria.
See also
vascular compr...
Article
Cerebellar, hippocampal, and basal nuclei transient edema with restricted diffusion (CHANTER) syndrome
Cerebellar, hippocampal, and basal nuclei transient edema with restricted diffusion (CHANTER) syndrome is a recently described constellation of imaging findings in adults with opioid neurotoxicity. It is characterized by cytotoxic edema in the bilateral hippocampi and cerebellar cortices, and va...
Article
Pediatric opioid use‐associated neurotoxicity with cerebellar edema (POUNCE) syndrome
Pediatric opioid use‐associated neurotoxicity with cerebellar edema (POUNCE) syndrome is a toxic encephalopathy in children with opioid overdose that features prominent cerebellar edema. Cerebellar predominance, along with variable supratentorial involvement, appears to be a distinct pattern of ...
Article
REACT syndrome
Reversible acute cerebellar toxicity (REACT) syndrome is a potentially reversible acute encephalopathic syndrome 1,2.
Epidemiology
REACT is a rare syndrome that has been associated with several opioid and chemotherapeutic agents, including Minnelide 1,2.
Clinical presentation
Patients typic...
Article
Van Wyk Grumbach syndrome
The Van Wyk Grumbach syndrome is characterized by chronic hypothyroidism with high levels of thyroid-stimulating hormone (TSH), delayed bone age, precocious puberty but lacking pubic and axillary hair growth 1.
Epidemiology
The acquired form of hypothyroidism is seen in children caused by chr...
Article
Delirium
Delirium (also known as acute brain failure) is an acute syndrome characterized by impaired intellect, awareness and concentration. Typically, the cognitive impairment fluctuates throughout the day. In contrast to dementia, delirium tends to be reversible.
Terminology
The number of synonyms fo...
Article
Spinoglenoid notch syndrome
Spinoglenoid notch syndrome is caused by compression of suprascapular nerve due to a ganglion cyst at the spinoglenoid notch resulting in shoulder pain and posterior shoulder tenderness.
Clinical presentation
On clinical examination, there is posterior shoulder tenderness, discomfort in extern...
Article
Keutel syndrome
Keutel syndrome is an extremely rare inherited condition.
Clinical presentation
It is characterized by:
cartilage calcification of:
ears
nose
larynx
trachea - with resultant tracheobronchial stenosis
ribs
pulmonary arterial stenoses
brachytelephalangism (short fingers and nails that re...
Article
CHEDDA syndrome
CHEDDA syndrome stands for congenital hypotonia, epilepsy, developmental delay and digital anomalies. Is a newly discovered neurodevelopmental syndrome associated with mutations in a conserved histidine-rich motif within Atrophin-1 (ATN-1).1
Epidemiology
CHEDDA syndrome is very rare, with only...
Article
Transient osteoporosis
Transient osteoporosis is a self-limited condition characterized by reparative bone remodeling, which can affect all weight-bearing joints, being most common in the femoral head. For detailed description of that condition see transient ostoporosis of the hip.
Clinical presentation
Typical sym...
Article
Impingement syndrome
Impingement syndrome is a painful encroachment of joint motion caused by protruding bony or soft tissue structures.
Epidemiology
Impingement syndromes are common and can occur at any age.
Risk factors
developmental osseous anomalies
overuse activity
trauma
Associations
osteoarthritis
te...
Article
Little league shoulder
Little league shoulder is thought to occur due to overuse damage of the proximal humeral epiphysis/metaphysis, seen typically in young baseball players, especially pitchers.
Epidemiology
Although it is most commonly seen in baseball players particularly in pitchers, it also presents in adolesc...
Article
Bile plug syndrome
Bile plug syndrome, also known as inspissated bile syndrome, is an uncommon cause of jaundice in neonates. Refers to a rare extrahepatic mechanical obstruction of the major bile duct in the perinatal period caused by viscous bile (sludge) within its lumen 3.
Epidemiology
Risk factors
Risk fa...
Article
Anterior suprapatellar fat pad impingement syndrome
Anterior suprapatellar (quadriceps) fat pad impingement syndrome is a controversial cause of anterior knee pain although anterior suprapatellar fat pad edema may often, and possibly more commonly, be incidental 1,2.
Radiographics features
MRI
The anterior suprapatellar fat pad is edematous c...
Article
Toxic shock syndrome
Toxic shock syndrome (TSS) is a severe bacterial-toxin mediated condition, characterized by an initial soft tissue infection, which rapidly progresses to systemic disease and circulatory collapse 5. It is due to a Gram positive infection, most frequently Staphylococcus aureus or Streptococcus py...
Article
Central herniation
Central herniation is the subtype of downward transtentorial herniation of the brain that involves descent of the diencephalon and midbrain. It usually occurs with other types of downward herniation such as uncal herniation.
Clinical manifestations
The clinical syndrome of central herniation c...
Article
Vaughan-Jackson syndrome
Vaughan-Jackson syndrome describes a rare syndrome of sequential atraumatic extensor tendon ruptures in the hand, usually in the setting of rheumatoid arthritis of the distal radioulnar joint.
Clinical presentation
The presentation is with reduced extension of the fingers 1-5. Typically, the f...
Article
Small for size graft syndrome (liver graft)
Small for size syndrome (SFSS) is a clinical syndrome caused by the transplantation of a liver graft that is too small for a recipient. It occurs when the graft‐to‐recipient weight ratio (GRWR ) is less than 0.8% or a graft volume to standard liver volume ratio (GV/SLV) is less than 35%.
Clinic...
Article
Lesch-Nyhan syndrome
Lesch-Nyhan syndrome is a rare X-linked genetic disease caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyltransferase (HPRT).
Epidemiology
Affects 1 per 380,000 individuals, which are nearly all male given the X-linked inheritance 1.
Clinical presentation
hyperuricemia-...
Article
Hunter syndrome
Hunter syndrome, also known as mucopolysaccharidosis type II (MPS II) is a rare genetic mucopolysaccharidosis disorder characterized by specific clinical features 1.
Epidemiology
Hunter syndrome is an X-linked recessive disease and therefore much more common in males. It is a rare disorder wit...
Article
Computer vision syndrome
Computer vision syndrome is a condition that affects primarily workers who use computers (including tablets and other devices with computer screens) many hours a day with symptoms that can include blurred vision, eye strain, and headache.
Epidemiology
Computer vision syndrome is a growing phen...
Article
Bone marrow edema syndrome
Bone marrow edema syndrome refers to a group of transient, self-limiting clinical entities of unknown cause, which are associated with the presence of bone marrow edema pattern.
These conditions include:
transient osteoporosis of the hip
bone marrow edema syndrome of the foot and ankle
regio...
Article
Myalgic encephalomyelitis/chronic fatigue syndrome
Myalgic encephalomyelitis/chronic fatigue syndrome or ME/CFS, is a complex organic disorder, characterized by profound fatigue and associated marked impairment of both physical and mental functioning. Its underlying etiology is undetermined and a curative treatment remains elusive.
Terminology
...
Article
Anterior resection syndrome
Anterior resection syndrome refers to wide spectrum of symptoms which develop post-sphincter preserving rectal resection for rectal cancer.
Pelvic radiotherapy is a known risk factor to develop anterior resection syndrome.
Epidemiology
There have been reports that up to 47% of patients who un...
Article
Branchio-otic syndrome
Branchio-otic syndrome (also known as BOS, BOS1, BO syndrome 1 and branchiootic dysplasia) is a rare autosomal dominant disease. It manifests as abnormalities of the second branchial arch, with predominant abnormalities of the ear. No renal disease is seen, in contradistinction to its close name...
Article
Severe acute respiratory syndrome
The severe acute respiratory syndrome (SARS) is a zoonotic illness caused by severe acute respiratory syndrome-related coronavirus (SARS-CoV-1), a coronavirus. The disease was first seen in the city of Foshan in Guangdong Province in China in 2002 and was traced back to the Himalayan (masked) p...
Article
Wolfram syndrome (type one)
Wolfram syndrome type one, also known as DIDMOAD, is a disease caused by an autosomal recessive genetic trait, caused by mutations in the WFS1 gene, with incomplete penetrance.
The syndrome presents with early onset of insulin-dependent diabetes mellitus, progressive optic atrophy, diabetes ins...
Article
Episodic angioedema with eosinophilia
Episodic angioedema with eosinophilia (EAE), also known as Gleich syndrome, is a rare condition presenting as a self-limiting cyclic urticaria, fever, angioedema, weight gain and marked eosinophilia, with 3-4 weekly episodes 1.
Epidemiology
Episodic angioedema with eosinophilia is rare, only a...
Article
Trisomy 8 mosaic
Trisomy 8 mosaicism or Warkany syndrome is a less severe variant of trisomy 8 and individuals with a low proportion of affected cells may exhibit a comparatively mild range of physical abnormalities and developmental delay. They are more likely to survive into childhood and adulthood but can exh...
Article
Big black brain
Big black brain is a radiologic pattern unique to infants and toddlers in the context of traumatic brain injury, most frequently due to abusive head trauma.
The CT presentation is a parenchymal hypodensity and uniform loss of gray-white differentiation in the entire hemisphere, associated with...
Article
Perry syndrome
Perry syndrome is a rare, progressive, hereditary neurodegenerative movement disorder and TDP-43 proteinopathy.
Epidemiology
Perry syndrome is considered to be very rare, generally isolated to select families who carry the mutation implicated in the disease 1,2. In one study, the age on onset ...
Article
Agraphia
Agraphia represents acquired impairments of writing ability secondary to damage or dysfunction of the central nervous system. Impairments caused solely by motor dysfunction (e.g. hand paresis or tremor) are not considered to be forms of agraphia 1.
Clinical presentation
Agraphia is rarely an i...
Article
Alexia
Alexia (or acquired dyslexia) is a neurological term refers to an acquired impairment of reading resulting from damage of critical brain areas.
Clinical presentation
Alexia can manifest itself as an impairment of oral reading and reading comprehension alike and can occur in combination with va...
Article
Obstructive sleep apnea
Obstructive sleep apnea (OSA), also known as obstructive sleep apnea syndrome (OSAS), is a disorder characterized by repetitive episodes of total (i.e. apnoeas) or reduction (i.e. hypopnoeas) in ventilation due to total or partial collapse of the upper airway during sleep.
This condition is dis...
Article
Shapiro syndrome
Shapiro syndrome is a very rare condition characterized by the triad of episodic hypothermia, hyperhidrosis, and agenesis of the corpus callosum 1. A similar syndrome, characterized by episodic hyperthermia and agenesis of the corpus callosum, has been termed reverse Shapiro syndrome 2.
Epidemi...
Article
RAPADILINO syndrome
RAPADILINO syndrome is a rare autosomal-recessive syndrome that results from mutations in the RECQL4 gene 1.
Epidemiology
RAPADILINO syndrome is a rare condition, prevalence is unknown. It is, however, more common and was first described in Finnish populations 2.
Pathology
The acronym RAPADI...
Article
Schindler disease
Schindler disease is a rare lysosomal storage disorder characterized by deficiency of alpha-N-acetylgalactosaminidase (alpha-NAGA or alpha-galactosidase B).
Epidemiology
It is a rare disease with autosomal recessive inheritance.
Clinical presentation
Age and severity of presentation depends ...
Article
Sanjad Sakati syndrome
Sanjad Sakati syndrome, also known as hypoparathyroidism-intellectual disability-dysmorphism syndrome, is a rare autosomal recessive disorder.
Epidemiology
The syndrome is almost exclusively found in people of Arab origin. There is an equal distribution in both sexes.
Clinical presentation
h...
Article
White cord syndrome
White cord syndrome refers to the sudden onset of neurological deterioration following spinal decompressive surgery. The condition is believed to be a form of reperfusion injury of the spinal cord, not to be confused with central cord syndrome.
Epidemiology
White cord syndrome is rare with onl...
Article
MEGDEL syndrome
MEGDEL syndrome (3-MEthylGlutaconic aciduria, Deafness, Encephalopathy, Leigh-like syndrome) is a recently described syndrome with infantile onset. These patients typically initially receive a diagnosis of Leigh syndrome, based on clinical and biochemical features and an abnormal basal ganglia s...
Article
DICER1 syndrome
DICER1 syndrome is a rare autosomal dominant disorder predisposing individual to the development of multiple tumor types. DICER1 is considered a tumor suppressor gene that encodes the endoribonuclease protein Dicer. The first association with pleuropulmonary blastoma was discovered in 2009.
Ass...
Article
Persistent postural perceptual dizziness
Persistent postural-perceptual dizziness refers to a recently (c. 2017) defined diagnostic syndrome. It unifies key features of chronic subjective dizziness, phobic postural vertigo and related disorders. It produces persistent dizziness, non-spinning vertigo and/or unsteadiness.
Clinical pres...
Article
Empty nose syndrome
The empty nose syndrome refers to a paradoxical sensation of nasal obstruction despite objectively patent nasal airways following inferior and/or middle turbinate resection.
Epidemiology
The condition is rare, occuring in a minority of patients who have undergone prior turbinate resection.
Cl...
Article
Superior thyroid cornu syndrome
Superior thyroid cornu syndrome refers to a situation when there is precipitation of dysphagia and /or other symptoms as a hypertrophy +/- ossification of one of both the both of the superior horns (cornu) of the thyroid cartilage. This can also result from extreme medial deviation.
Treatment a...
Article
Autoinflammatory diseases with periodic fevers
There are several autoinflammatory diseases with periodic fevers. These include
familial mediterranean fever (FMF)
cryopyrin-associated periodic syndrome (CAPS)
tumor necrosis factor receptor-associated periodic fever syndrome (TRAPS)
hyperimmunoglobulinemia D and periodic fever syndrome / m...
Article
Tumor necrosis factor receptor-associated periodic syndrome
Tumor necrosis factor receptor-associated periodic syndrome (or sometimes abbreviated as TRAPS) is a condition characterized by recurrent (periodic) episodes of fever as well as a spectrum of dermatologic findings that includes migratory patches, edematous plaques, periorbital edema, and/or conj...
Article
Peroxisome biogenesis disorder
Peroxisome biogenesis disorders (PBDs) are autosomal recessive, inborn errors of peroxisomes, a eukaryotic cell organelle critical to the breakdown of very long chain fatty acids via beta-oxidation.
Clinical presentation
There are two main groups 1:
Zellweger spectrum disorder (ZSD)
Zellweg...
Article
Robinow-Sorauf syndrome
Robinow-Sorauf syndrome (RSS) is a rare, autosomal dominant type of acrocephalosyndactyly syndrome (ACS).
Rather than being a distinct ACS, it has now generally accepted that RSS is, in fact, part of the Saethre-Chotzen syndrome phenotypic spectrum 1. This is due to similar phenotype and both b...
Article
Pickardt syndrome
Pickardt syndrome also known as Pickardt-Fahlbusch syndrome is a rare syndrome characterized by tertiary hypothyroidism, hyperprolactinemia and other pituitary hormone deficiencies resulting from interruption of the portal blood supply of the anterior pituitary via the infundibulum which drains ...
Article
Börjeson-Forssman-Lehmann syndrome
Börjeson-Forssman-Lehmann syndrome (BFLS) is an extremely rare disorder characterized by
intellectual disability
obesity
seizures
gonadal failure (testes in males or the ovaries in females) to produce hormones (hypogonadism)
distinctive facial features.
Affected infants tend to experience ...
Article
Cerebellar mutism syndrome
Cerebellar mutism syndrome, also known as post-operative pediatric cerebellar mutism syndrome (pCMS), usually develops after resection of midline cerebellar or intraventricular tumors in the posterior cranial fossa. Typical features of this condition are transient mutism, ataxia, hypotonia and i...
Article
Subacute encephalopathy with seizures in alcoholics (SESA syndrome)
Subacute encephalopathy with seizures in alcoholics (SESA syndrome) is a rare complication of chronic excessive alcohol consumption that can present with seizures and a variety of neurological deficits.
Epidemiology
SESA syndrome is rare and seen in alcoholics who are not undergoing withdrawa...
Article
Bone marrow edema syndrome of the foot and ankle
Bone marrow edema syndrome of the foot and ankle, also known as transient bone marrow edema syndrome of the foot and ankle, refers to the presence of self-limited, patchy bone marrow T2 hyperintensities in the bones of the ankle and/or foot of unknown etiology. It is related to transient osteopo...
Article
Branchio-oculo-facial syndrome
Branchio-oculo-facial syndrome (BOFS) is a very rare autosomal dominant genetic disorder that is characterized clinically by abnormalities affecting the eyes, craniofacial structures, and branchial sinuses.
Epidemiology
More than 80 cases have been reported in the global literature since its f...
Article
Adductor canal syndrome
Adductor canal syndrome (also known as adductor canal compression syndrome) is a rare, non-atherosclerotic cause of arterial occlusion and limb ischemia 1. There is compression of the superficial femoral artery (SFA) in the adductor canal.
Epidemiology
External compression of the superficial f...
Article
Sepsis
Sepsis is a syndrome, with a poorly understood pathogenesis, characterized clinically by a recognized set of signs and symptoms in someone with presumed infection.
Terminology
Sepsis was defined by The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3) in 2016 as ...