Items tagged “refs”
2,968 results found
Article
High altitude illness
High altitude illness describes a group of syndromes which can occur due to rapid ascent to high altitudes (>2500 m) without sufficient acclimatisation.
Epidemiology
High altitude illness typically develops in hikers and mountain climbers with rapid high altitude ascension.
Clinical presentat...
Article
T1 hyperintense renal lesions
T1 hyperintense renal lesions are a group of lesions that show high signal characteristics on T1-weighted MRI compared to the adjacent normal renal parenchyma.
The differential diagnoses for this group include:
hemorrhagic and/or highly proteinaceous renal cyst
papillary renal cell carcinoma ...
Article
Bronchocele
The term bronchocele indicates focal bronchial dilatation and is often associated with mucoid impaction and impaired ventilation.
Pathology
Bronchoceles can be congenital (e.g. bronchial atresia) or acquired due to retained secretions or proximal obstruction (e.g. endobronchial tumor) 1.
Radi...
Article
Bronchomalacia
Bronchomalacia describes weak bronchial cartilage which allows excessive airway collapsibility, best demonstrated on dynamic CT in forced expiration 1. Importantly, substantial collapse can occur in normal healthy individuals and there is considerable overlap so that CT appearances alone are non...
Article
Osteoma cutis
Osteoma cutis, or cutaneous ossification, is the formation of bone within the skin.
Clinical presentation
Primary osteoma cutis is an idiopathic, benign, non-invasive condition that is usually asymptomatic 1. It is often detected incidentally radiographically, most commonly in facial and scalp...
Article
LI-RADS US Surveillance
Liver Imaging Reporting and Data System Ultrasound Surveillance (LI-RADS US Surveillance) is a standardized system with recommendations for imaging technique, interpretation and reporting for surveillance of hepatocellular carcinoma (HCC) using unenhanced ultrasound in patients at high risk for ...
Article
Transient hepatic echogenicity differences
Transient hepatic echogenicity differences (THED) are areas of differential enhancement of the liver parenchyma depicted with contrast-enhanced ultrasound (CEUS) using microbubble intravascular contrast agents. They are equivalent to transient hepatic attenuation differences (THAD) with contrast...
Article
CEUS LI-RADS
The Contrast-enhanced Ultrasound Liver Imaging Reporting and Data System (CEUS LI-RADS) is a standardized classification system, algorithm, and terminology for diagnosing hepatocellular carcinoma (HCC) in high-risk patients using CEUS with blood-pool intravenous contrast agents.
The current ver...
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