Articles

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16,860 results found
Article

CheckList for EvaluAtion of Radiomics research (CLEAR)

The CheckList for Evaluation of Radiomics Research (CLEAR) is a 58-item reporting guideline designed specifically for radiomics. It aims to improve the quality of reporting in radiomics research 1. CLEAR is endorsed by the European Society of Radiology (ESR) and the European Society of Medical I...
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Blake's pouch cyst

Blake's pouch cyst is a cystic appearing structure that represents posterior ballooning of the inferior medullary velum into the cisterna magna, below and posterior to the vermis, that communicates with an open fourth ventricle. It is caused by a failure of the regression of Blake's pouch second...
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Unilateral hypertransradiant hemithorax (mnemonic)

Unilateral hypertransradiancy is the correct term for the chest radiograph appearance of increased blackness affecting one lung. Hyperlucency is a commonly used alternative but is inaccurate; the chest is not penetrated by light! A logical approach begins by checking for: technical factors pa...
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Malignant peritoneal mesothelioma

Malignant peritoneal mesothelioma is an uncommon primary tumor of the peritoneal lining. It shares epidemiological and pathological features with - but is less common than - its pleural counterpart, which is described in detail in the general article on mesothelioma. Other abdominal subtypes (al...
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Corrosive esophagitis

Corrosive esophagitis is a form of esophagitis and usually occurs from accidental or suicidal ingestion of alkaline substances (e.g. lye, household cleaners, bleaches, washing soda) and is harmful to the esophagus due to their alkali medium. The stomach is not affected as the gastric acid can ne...
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Axenfeld-Rieger syndrome

Axenfeld-Rieger syndrome is a rare spectrum of disorders with an autosomal dominant pattern of inheritance 6. The syndrome incorporates all of 5: Axenfeld anomaly: posterior embryotoxon and peripheral irido-corneal adhesions Rieger anomaly: findings of Axenfeld anomaly along with corectopia (m...
Article

Unilateral hypertransradiant hemithorax

Unilateral hypertransradiancy is the correct term for the chest radiograph appearance of increased blackness affecting one lung. Hyperlucency is a commonly used alternative but is inaccurate; the chest is not penetrated by light! An outside-in approach is helpful to identify the cause: technic...
Article

Von Hippel-Lindau disease

Von Hippel-Lindau (vHL) disease is characterized by the development of numerous benign and malignant tumors in different organs (at least 40 types 1) due to mutations in the VHL tumor suppressor gene on chromosome 3. Epidemiology The disease is rare with an estimated prevalence of 1:35,000-50,...
Article

Trichorhinophalangeal syndrome type II

Trichorhinophalangeal syndrome type II, also known as Langer-Giedion syndrome, is an extremely rare autosomal dominant genetic disorder. Pathology The effects are seen mainly on the skeletal system and primarily involves hair: "tricho-" nose: "rhino-" digits of the hands and feet: "-phalang...
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Diffuse axonal injury (grading)

Grading of diffuse axonal injury due to trauma is described according to the anatomic distribution of injury. Contrary to the implication of the word "diffuse," diffuse axonal injury has a topological predilection for focal involvement of certain sites in the brain. These sites, in turn, vary in...
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Tug lesion (musculoskeletal)

A tug lesion in musculoskeletal imaging is a term given to describe a bony traction reaction at a muscle attachment site likened to that of the "tug effect. They are benign and are placed as do not touch lesions. Notable sites include: distal femur: cortical desmoid posterior tibia: soleal li...
Article

Conus medullaris syndrome

Conus medullaris syndrome is caused by an injury or insult to the conus medullaris and lumbar nerve roots. It is a clinical subset of spinal cord injury syndromes. Injuries at the level of T12 to L2 vertebrae are most likely to result in conus medullaris syndrome. Clinical presentation Patient...
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Conus medullaris

The conus medullaris is the tapered inferior-most part of the spinal cord to which is attached the filum terminale. Gross anatomy The conus medullaris is conical in shape, tapering from the distal spinal cord to a narrow point from which a delicate strand of fibrous tissue called the filum ter...
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Spinal cord

The spinal cord is the part of the central nervous system found within the vertebral column's spinal canal. The cord extends from the corticomedullary junction at the foramen magnum of the skull down to the tip of the conus medullaris within the lumbar cistern. It is lined by the spinal pia mate...
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Skull

The skull (TA: cranium) is the superior-most part of the human skeleton and houses the brain and includes the skeletal elements of the face. It consists of numerous bones connected to each other by sutures which renders them immobile. Terminology Variability in which bones to include and how t...
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Distal radial fracture

Distal radial fractures are a heterogeneous group of fractures that occur at the distal radius and are the dominant fracture type at the wrist. These common fractures, representing ~15% of all fractures 7, usually occur when significant force is applied to the distal radial metaphysis.  Epidemi...
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Encephalocele

Encephalocele, also known as meningoencephalocele, is a form of neural tube defect and a type of cephalocele where brain tissue and overlying meninges herniate out through a defect in the cranium.  Terminology Although the terms encephalocele and meningoencephalocele are often used interchange...
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Hypertensive microangiopathy

Hypertensive microangiopathy, also referred to as chronic hypertensive encephalopathy, hypertensive arteriopathy, hypertensive arteriolosclerosis, and hypertensive small vessel disease, is a form of sporadic cerebral small vessel disease that results from the sustained effects of elevated system...
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Gynecologic Imaging-Reporting and Data System (GI-RADS)

The Gynecologic Imaging-Reporting and Data System (GI-RADS) is a reporting system that was created for reporting the findings in adnexal masses based on transvaginal ultrasonography. Classification Findings are classified into five categories 1: GI-RADS 1 normal ovaries identified and no adn...
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SRU management guidelines for gallbladder polyps

The Society of Radiologists in Ultrasound (SRU) consensus recommendation for the management of incidentally detected gallbladder polyps was published in 2021 1. Usage The SRU consensus recommendation is one of many guidelines for the management of incidentally detected gallbladder polyps. The ...

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