Items tagged “stub”
1,307 results found
Article
Serpiginous
Serpiginous means creeping from one place to another. In medicine, it was originally, and still is commonly, applied to skin lesions that spread with an undulating border. However, radiologists often erroneously use the term in a manner synonymous with serpentine to mean tortuous, especially whe...
Article
Tram-track sign (bone)
The tram-track sign is sometimes seen on delayed bone scan images. They can appear as symmetric linear increase in tracer accumulation along diaphyseal and metaphyseal surfaces of long bones. Corresponding to similar periosteal reaction seen on radiographs. Bone scan findings precede radiographi...
Article
Macromelia
Macromelia is a descriptive term for isolated enlargement of an entire extremity, whether arm or leg. It is most commonly a manifestation of extensive underlying vascular or lymphatic malformation(s), such as:
Klippel-Trénaunay-Weber syndrome - usually lower extremity
Chronic hereditary lymphe...
Article
Aphakia
Aphakia (less commonly aphacia) is the absence of the lens from the ocular globe.
Pathology
Etiology
surgical removal of a cataract (commonest cause)
trauma
congenital
Treatment and prognosis
Surgical insertion of an intraocular lens implant, in which case the aphakic appearance is calle...
Article
Autophony
Autophony, also known as tympanophony, is the experience of finding that one's own voice sounds much louder than normal or is unpleasantly garbled.
Autophony has been described in several clinical entities including superior semicircular canal dehiscence syndrome and patulous Eustachian tube d...
Article
Septum
Septa (singular: septum) are anatomical or pathological sheet-like structures that subdivide a component of normal anatomy or a lesion.
Terminology
Septa is the plural of the Latin word septum. Septae and septi are erroneous forms and are not words in English, nor correct plurals in Latin 2. S...
Article
Epithelioid angiomyolipoma of kidney
Epithelioid angiomyolipomas (EAML) are rare variants of the more common renal angiomyolipoma. They have malignant potential.
Pathology
Like more common renal angiomyolipomas, EAMLs are considered perivascular epithelioid cell tumors (PEComas). EAMLs were regarded as a separate renal mass entit...
Article
Abrodil
Abrodil (marketed as Skiodan in the US) was a water-based iodinated contrast medium introduced for clinical use in 1930 3. It was developed by Bronner, Hecht and Schueller in Germany. Chemically, Abrodil is the sodium salt of monoiodomethanesulfonic acid.
It was initially employed for intraveno...
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Infraction
Infractions are incomplete fragmented fractures without displacement. The most well-known is Freiberg infraction.
Article
Appendiceal diverticulitis
Appendiceal diverticulitis (plural diverticulitides) is a rare condition in which there is acute inflammation of a diverticulum arising from the vermiform appendix.
Epidemiology
Historically appendiceal diverticulitis has been thought to be a rare diagnosis. However a study from 2015 which ret...
Article
Gullo syndrome
Gullo syndrome, also known as benign pancreatic hyperenzymemia, is characterized by the abnormal elevation of the serum levels of most or all of the pancreatic enzymes without any evidence of underlying pancreatic pathology. It is a diagnosis of exclusion made when all other laboratory assays an...
Article
Track sign (femur)
The track sign is the presence of two sclerotic lines, running parallel to the long axis of the bone, on a frontal radiograph of the femur. It represents visualization of the linea aspera-pilaster complex, an anatomic variant 1.
The linea aspera is the roughened vertical ridge of bone which run...
Article
Epiphora
Epiphora (plural: epiphoras) represents excessive tearing of the eye and is a common clinical presentation to ophthalmological practice. It is most frequently due to an obstruction of the nasolacrimal drainage apparatus. Less commonly, overproduction of tears may be responsible.
Epidemiology
...
Article
Tension hemothorax
A tension hemothorax refers to a hemothorax that exerts a considerable mass effect. It often results from massive intrathoracic hemorrhage and often causes ipsilateral lung compression and mediastinal displacement.
Article
Trigeminal autonomic cephalalgia
Trigeminal autonomic cephalalgias (TACs) are a group of related primary headache syndromes characterized by unilateral pain and autonomic activation in a trigeminal nerve distribution 1.
The headache syndromes considered to be trigeminal autonomic cephalalgias include 1:
cluster headache
par...
Article
Multicentric ossification
Multicentric ossification refers to normal, or variant of normal, ossification at more than one site within a single epiphysis or apophysis. It is important to be aware of common sites where multicentric ossification may occur, to avoid confusion with fracture, apophysitis and other entities.
t...
Article
Tendinosis
Tendinosis (plural: tendinoses) is a term used to refer to the chronic degeneration of a tendon with damage at the cellular level.
Terminology
There is significant overlap in the use of tendinosis and tendinopathy, with the terms often used interchangeably in clinical practice. Tendinosis has...
Article
Tendon instability
Tendon instability can refer to dislocation or subluxation. Common locations include:
wrist
extensor carpi ulnaris (medial)
shoulder
long head of biceps (medial +/- into the glenohumeral joint if subscapularis torn)
ankle
peroneal brevis and longus (lateral or medial)
tibialis posterior (...
Article
Cerebrospinal fluid diversion (summary)
Cerebrospinal fluid diversion describes a situation where cerebrospinal fluid is diverted from its physiological pathway, generally, but not always, in cases of increased cerebrospinal fluid pressure.
Some of the commonly used shunts are:
third ventriculostomy
ventriculoperitoneal (VP) shunts...
Article
Pulmonary schistosomiasis
Pulmonary schistosomiasis refers to lung involvement in schistosomiasis. Lung involvement can occur in 50% of cases. It occasionally falls into the group of secondary eosinophilic lung disease.
The disease is broadly categorized into two main forms:
acute: acute pulmonary schistosomiasis
co...