Items tagged “cases3”
343 results found
Article
Tibiotalar angle
The tibiotalar angle is between the anatomic axis of the tibia and the superior articular surface of the talar dome. Differently from the talar tilt, the tibiotalar angle uses the tibial longitudinal axis instead of the distal articular surface as a tibial reference point.
Usage
The tibiotalar...
Article
Anterior to posterior fibular gap
The anterior to posterior fibular gap illustrates the displacement of the proximal and distal fibular fragments in trans-syndesmotic lateral malleolar fractures on the lateral view of the ankle and might indicate a medial injury.
Usage
The anterior to posterior fibular gap can be used in the s...
Article
Folliculitis
Folliculitis (plural: folliculitides) is an inflammation of the hair follicle, which is usually infective and due to bacteria, most commonly Staphylococcus aureus.
Epidemiology
Folliculitis is more common in men 1.
Risk factors
shaving
hot tubs, especially Pseudomonas aeruginosa
hot clima...
Article
Furuncle
A furuncle, also known as a boil, is an infected hair follicle with extension through the dermis into the subcutaneous soft tissues (cf. folliculitis, a more superficial hair follicle infection, with pus limited to the epidermis).
Epidemiology
Risk factors
Outbreaks of furunculosis are seen, ...
Article
Hair
Hair (TA: pilus/pili) remains important physiologically and psychologically for humans. The hair shaft develops from a structure known as the hair follicle. Each hair has an arrector pili muscle and both sensory and sympathetic neural connections.
Gross anatomy
The hair shaft (TA: stipes pili)...
Article
Infectious tenosynovitis
Infectious or septic tenosynovitis refers to an infection of the closed synovial tendon sheath 1-3.
Terminology
The term ‘infectious or septic tenosynovitis’ applies for tendons with a tendon sheath, for tendons without a tendon sheath with a paratenon the term ‘infective paratenonitis’ can be...
Article
Notch sign (primary CNS lymphoma)
The notch sign refers to an abnormally deep depression at the tumor margin in contrast-enhanced MRI in primary CNS lymphoma 1. It is not an uncommon sign in primary CNS lymphoma and can be seen in both immunocompetent and immunocompromised patients. It suggests an irregular growth pattern as wel...
Article
Glasgow-Blatchford score
The Glasgow-Blatchford score (GBS) is a widely-used and well-validated scoring system for upper GI bleeding and the need for intervention.
Score
The scoring system relies upon knowing the patient's urea, hemoglobin, systolic blood pressure, and several other criteria. Each criterion is scored,...
Article
Cyanosis
Cyanosis (plural: cyanoses) is a physical sign represented by bluish discolouration of the skin. It indicates there is reduced oxygen bound to red blood cells in the bloodstream. Diagnosis of the underlying cause of cyanosis is based on a thorough history and physical examination.
Pathology
Et...
Article
Ossification of the interosseous membrane of the leg
Ossification of the interosseous membrane of the leg is considered a form of heterotopic ossification. It is typically seen as bridging ossification between the tibia and fibula.
Three types have been described.
type I: usually occurs after a syndesmosis ankle sprain
type II: usually from a t...
Article
Subcutaneous implantable defibrillator
A subcutaneous implantable defibrillator (SICD) is a medical device implanted, typically in the chest wall, It delivers an electric impulse to the heart like a standard cardiac defibrillator (AICD) without leads being inserted into the myocardium.
Article
Oral tori
Oral tori (singular torus) are benign bony outgrowths from the maxilla and mandible:
maxillary tori a.k.a. torus palatinus
mandibular tori a.k.a. torus mandibularis
Oral tori are subcategorised according to their shape 1:
flat
spindle
nodular
lobular
Although not usually called tori, fur...
Article
Tracheal air column
The tracheal air column describes the appearance of the trachea on plain chest radiographs.
Radiographic appearance
Plain radiograph
On frontal chest radiographs, the air column extends as an almost vertical, radiolucent column midline in the mediastinum from the inferior margin of the cricoi...
Article
Boston criteria 2.0 for cerebral amyloid angiopathy
The Boston criteria 2.0 were proposed in 2022 in order to better include leptomeningeal and white matter characteristics into the diagnoses of probable and possible cerebral amyloid angiopathy (CAA) 1. They consist of combined clinical, imaging and pathological parameters, and are based upon the...
Article
Scalene muscles
The scalene muscles are a group of three closely related neck muscles.
anterior scalene muscles
middle scalene muscles
posterior scalene muscles
Summary
origin: transverse processes of mid to lower cervical vertebrae (C2-C7).
insertion: first or second ribs. The anterior and middle insert...
Article
Spontaneous retropharyngeal hemorrhage
Spontaneous retropharyngeal hemorrhage, also known as spontaneous retropharyngeal hematoma, describes an accumulation of blood in the retropharyngeal space. It is a rare but potentially fatal entity due to potential for acute airway obstruction and/or rapid internal bleeding.
Epidemiology
Spon...
Article
Elfin facies
Elfin facies refers to a characteristic facial appearance seen in certain rare congenital syndromes.
Terminology
Elfin facies is sometimes used synonymously with Williams syndrome and the latter is occasionally called elfin facies syndrome. However elfin facies is seen with other rare genetic ...
Article
Donohue syndrome
Donohue syndrome, also known as leprechaunism, is a rare autosomal recessive form of insulin resistance syndrome with a distinctive phenotype including elfin facies and severe disturbances of glucose homeostasis. It is universally fatal in early childhood.
Epidemiology
Donohue syndrome is very...
Article
Gastrocolic fistula
A gastrocolic fistula (plural: fistulas/fistulae), also known as cologastric fistula, is a rare form of gut fistulisation between the stomach and the colon.
Terminology
Gastrocolic fistula, is much more common in the literature than its synonym cologastric fistula, which is in line with the co...
Article
Acceleration index
Acceleration index is an indirect sonographic sign to assess renal artery stenosis 1.
Usage
Acceleration index is used in the Doppler assessment of the renal arteries when assessing for renal artery stenosis.
Measurement
Acceleration index is calculated by subtracting the initial systolic ve...