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.
More than 200 results
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
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
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
Calcific axillary lymphadenopathy (differential)
Calcific axillary lymphadenopathy is in general, more concerning than axillary lymphadenopathy alone and is particularly so if it contains microcalcifications. While this is concerning for malignancy, it can also occur from occasional nonmalignant causes.
Pathology
Etiology
metastatic axillar...
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
Benign prostatic hyperplasia
Benign prostatic hyperplasia (BPH), also known as benign prostatic enlargement (BPE), is an extremely common condition in elderly males and a major cause of bladder outflow obstruction.
Terminology
The term benign prostatic hypertrophy was formerly used for this condition, but since histology...
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 pneumoperitoneum...
Article
Necrotizing soft tissue infection
Necrotizing soft tissue infections (NTSI) are a category of bacterial infection characterized by rapidly progressive tissue destruction involving the skin, subcutaneous fat, deep fascia, and/or muscle.
Terminology
Traditionally, such infections have been separated by the depth of involvement 1...
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
American X-Ray Journal
The American X-Ray Journal was the first radiology journal in the United States. Its first issue was published in May 1897, its founder and first editor was an American physician Heber Robarts (1852-1922), who took an early keen interest in the new Roentgen rays. Robarts was also a co-founder of...
Article
Primordial cyst of the mandible
Primordial cysts are infrequent cystic mandibular lesions, which are thought to result from degeneration of dental follicles. No tooth is therefore present, and the cyst is a well defined, small and static lesion, most commonly located posteriorly in the region of the third molar or angle of the...
Article
American Journal of Neuroradiology (AJNR)
American Journal of Neuroradiology (AJNR) is the premier publication of the American Society of Neuroradiology and was first published in 1980 1. Its founding editor was Juan M Taveras (1919-2002), a pioneering American neuroradiologist and co-founder of the American Society of Neuroradiology. I...
Article
Serous cystadenoma of the pancreas
Serous cystadenoma of the pancreas, also referred as microcystic adenoma, is an uncommon type of benign cystic pancreatic neoplasm.
Epidemiology
There is a recognized strong female predilection (M:F ~ 1:4) and usually presents in middle age to elderly patients (>60 years of age).
Associatio...
Article
Classification of ductal carcinoma in situ (DCIS)
The new pathological classification of DCIS (ductal carcinoma in situ) is based on cytonuclear atypia, degree of necrosis, size, and distance from margin/architecture. Low and intermediate grades DCIS require cytologic, architectural and size criteria to be met but high-grade DCIS requires only ...
Article
Hematuria (adult)
Hematuria occurs when blood enters the urinary collecting system and is excreted in the urine. There are many etiologies for hematuria, and they range from benign and transient to gravely concerning. Hematuria can derive from the kidneys, ureters, bladder, prostate (in men), or urethra. Imaging ...
Article
Lamina cribrosa sclerae
The lamina cribrosa sclerae, also known as lamina cribrosa of the sclera, is a net-like structure covering a small hole in the posterior sclera through which the optic nerve (cranial nerve II), central retinal artery and central retinal vein pass.
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