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 continuously improved upon by countless contributing members. Our dedicated editors oversee each edit for accuracy and style. Find out more about articles.
16,861 results found
Article
Sessile
Sessile is a pathological term which is used for lesions that are attached by their base, that is they lack a stalk i.e. are not pedunculated. It is most commonly used for intraluminal polyps in the GI tract.
History and etymology
Sessile is derived from the Latin word "sessilis" which means s...
Article
Invasive mucinous adenocarcinoma of the lung
Invasive mucinous adenocarcinoma (IMA) of the lung is a subtype of invasive adenocarcinoma of the lung formerly known as mucinous bronchoalveolar carcinoma (BAC). They are more likely to be multicentric and tend to have a worse prognosis than non-mucinous types.
Terminology
In 2011, the Inter...
Article
American Society of Neuroradiology
American Society of Neuroradiology (ASNR) was established in 1962 to ensure that neuroradiologists in the United States could freely exchange ideas and act with a common voice. It publishes the American Journal of Neuroradiology (AJNR) and Neurographics.
History
At the VIth Symposium Neuroradi...
Article
Puerperal mastitis
Puerperal mastitis refers to mastitis occurring during pregnancy and lactation.
Epidemiology
It occurs most often during breast feeding and is rarely encountered during pregnancy.
Pathology
The source of infection is the nursing infant's nose and throat; the organisms being Staphylococcus au...
Article
Elbow (acute flexion AP)
The elbow acute flexion AP is a modified elbow AP projection for patients who cannot straighten their arm for examination. It is comprised of two views demonstrating the distal humerus and proximal forearm structures.
Indications
This is a modified projection (chosen by the radiographer when ...
Article
Fourth-fifth intermetatarsal angle
The fourth-fifth intermetatarsal angle is used to assess for a bunionette deformity. It should not be confused with the first intermetatarsal angle, used to assess for hallux valgus deformity.
Measurement
The fourth-fifth intermetatarsal angle is formed between the long axis of the fourth and...
Article
Benign enlargement of the subarachnoid space in infancy
Benign enlargement of the subarachnoid spaces in infancy (BESS or BESSI) also known as benign external hydrocephalus (BEH) is, as per the name, a benign enlargement of the subarachnoid spaces in infants. It usually involves the frontal lobe subarachnoid spaces, and it is characterized clinically...
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
Radiology (journal)
Radiology is a peer-reviewed monthly journal published by the Radiological Society of North America (RSNA) and its first edition was issued in September 1923 1.
Its current editor is David A Bluemke. It was recently announced that Linda Moy, an American breast radiologist, had been appointed as...
Article
Wrist
The wrist is a complex synovial joint formed by articulations of the radius, the articular disc of the distal radioulnar joint and the carpal bones.
Terminology
Somewhat confusingly, the term carpus can be used as a synonym for the wrist joint as a whole, or in a more restricted sense to refer...
Article
Benign prostatic hyperplasia
Benign prostatic hyperplasia (BPH), also known as benign prostatic enlargement (BPE), is an extremely common condition in elderly men and is a major cause of bladder outflow obstruction.
Terminology
The term benign prostatic hypertrophy was formerly used for this condition, but since there is...
Article
Wrist (horizontal beam lateral view)
The horizontal beam lateral wrist view is a modified lateral projection when performing the three view series of the wrist and carpal bones in trauma
Indications
This is not a requested view, rather an adaptation to a tricky situation. Most often this projection is conducted on patients who ar...
Article
Acute abdominal series
The acute abdominal series is a common set of abdominal radiographs obtained to evaluate bowel gas.
Indications
The acute series is used for a variety of indications including:
determine the amount of bowel gas, with possible bowel distention
assess air-fluid levels
query pneumoper...
Article
Fibularis longus muscle
The fibularis longus muscle (also known as peroneus longus muscle) is one of the muscles of the lateral compartment of the leg.
Summary
origin: head of the fibula
insertion: first metatarsal and medial cuneiform
innervation: superficial peroneal nerve (superficial fibular nerve)
action: foo...
Article
Intradiploic epidermoid cyst
Intradiploic epidermoid cysts refer to epidermoid cysts that occur in the diploë of the skull.
Clinical presentation
Painless slowly progressive scalp swelling.
Pathology
epidermoid cysts may be congenital (most common, arising from ectodermal inclusion during neural tube closure and subsequ...
Article
Insertional cyst
Insertional cysts are usually well-defined, smooth-walled intraosseous cysts found at the insertion sites of tendons and ligaments.
Pathology
Etiology
They are thought to be a consequence of bone resorption due to chronic traction and avulsion stresses at the insertional sites of tendons and ...
Article
Pleural mouse
A pleural mouse (plural: pleural mice), also known as a fibrin body is a 1-2 cm mobile rounded clump of fibrin left over after resolution of a pleural effusion 1.
Article
Archives of Clinical Skiagraphy
Archives of Clinical Skiagraphy was the first radiology scientific journal in the world with its first edition issued in May 1896. This is only six months after the discovery of x-rays by Wilhelm Roentgen on 8th November 1895.
In 1897 Archives of Skiagraphy was renamed Archives of the Roentgen...
Article
Assessment of thyroid lesions (ultrasound)
Ultrasound is the first-line imaging modality for assessment of thyroid nodules found on clinical examination or incidentally on another imaging modality. This article is an overview of ultrasonographic features of thyroid nodules, which are used to determine the need for biopsy with fine needle...
Article
RadioGraphics
RadioGraphics is a review journal published by the Radiological Society of North America (RSNA), its first edition issued in 1981 1. Radiology is a sister journal. Its current editor is Dr Christine "Cooky" O Menias.
History
In 1980, as the RSNA editor of educational materials, Dr William J Tu...
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