Items tagged “cases”
5,524 results found
Article
Pericallosal cistern
The pericallosal cistern is an unpaired subarachnoid cistern containing the pericallosal artery. It lies between the superior surface of the corpus callosum and the inferior edge of the falx cerebri and extends from the genu to the splenium of the corpus callosum 1-3.
Article
Colostomy
Colostomies are a surgically created stoma between the colon and the abdominal wall. It can be performed for both malignant and benign conditions.
Types
end colostomy
temporary end colostomy as part of a Hartmann procedure
loop colostomy
double barrel colostomy
end colostomy with mucous f...
Article
Metatarsus primus varus
Metatarsus primus varus is the medial angulation of the first metatarsal and has been associated with hallux valgus 1,2. It is characterized by an intermetatarsal angle >9˚ 3.
Article
Germinal matrix
The germinal matrix is an embryological structure in the fetal brain which is only seen in the fetus and in premature neonates. It is the most vulnerable area of the fetal brain and associated pathology carries significant mortality and morbidity.
Gross anatomy
The germinal matrix is usually...
Article
Herder risk model
British Thoracic Society (BTS) guidelines for pulmonary nodules1 recommend the application of the Herder risk model in predicting malignancy in pulmonary nodules.
The Herder model 2 predicts the risk of malignancy in solid pulmonary nodules using patient characteristics, nodules characteristics...
Article
Perugini grading scale
The Perugini grading scale is a semi-quantitative method of scoring cardiac uptake following injection of 99mTc-DPD, 99mTc-Pyrophosphate or 99mTc-HMDP scintigraphy in the investigation of cardiac amyloidosis (particularly ATTR amyloidosis). The grading scale visually compares tracer uptake in th...
Article
Chronic epididymitis
Chronic epididymitis is a clinical diagnosis based on chronic epididymal pain lasting for at least six weeks 8. It is a common, possibly the most common, cause of scrotal pain.
Epidemiology
One study found the median age at presentation is 46-49 years with an average duration of symptoms prio...
Article
Gastrointestinal leiomyoma (overview)
Gastrointestinal leiomyomas are smooth muscle tumors without malignant potential that may develop in any part of the gastrointestinal system:
esophageal leiomyoma
gastric leiomyoma
small bowel leiomyoma
colonic leiomyoma
Article
Epididymal leiomyoma
Epididymal leiomyomas (fibrous pseudotumors) are uncommon smooth muscle tumors that do not have malignant potential. Their imaging features are not specific and, if small, it may be a difficult prospective diagnosis on imaging. They are usually encountered in a differential for epididymal/parate...
Article
Peak systolic velocity (Doppler ultrasound)
Peak systolic velocity (PSV) is an index measured in spectral Doppler ultrasound. On a Doppler waveform, the peak systolic velocity corresponds to each tall “peak” in the spectrum window 1.
Explanation
When traveling with their greatest velocity in a vessel (i.e. during systole), red blood cel...
Article
End-diastolic velocity (Doppler ultrasound)
End-diastolic velocity (EDV) is an index measured in spectral Doppler ultrasound. On a Doppler waveform, the EDV corresponds to the point marked at the end of the cardiac cycle (just prior to the systolic peak) 1. In some equipment, the timing of cardiac cycle events may be automatically marked ...
Article
Strasberg classification of bile duct injury
The Strasberg classification of bile duct injury is a widely used system to anatomically define these injuries by location 1.
Classification
type A: injury to the cystic duct or from minor hepatic ducts draining the liver bed
type B: occlusion of the biliary tree, commonly aberrant ...
Article
B ring
The B ring is a mucosal ring that develops in the distal esophagus at the gastro-esophageal junction (Z line).
Terminology
If the ring becomes symptomatic, then it is usually termed a Schatzki ring, although some use the terms synonymously.
Pathology
Its development is thought to be a react...
Article
Mesenteric arteritis
Mesenteric arteritis is an unusual cause of mesenteric ischemia. However, it should be considered when locations are atypical such as the stomach, duodenum, rectum (small and large intestine involved at the same time), and the genitourinary system, especially in young patients 1.
Epidemiology
...
Article
Orbital epidermoid cyst
Orbital epidermoid cysts are a rare cause of an orbital mass.
Clinical presentation
Patients most commonly present with a mass and lid swelling 1.
Pathology
Orbital epidermoid cysts can be congenital, acquired (e.g. post-surgery, trauma), or lacrimal gland duct obstruction 3. They can be a...
Article
Bare area (disambiguation)
Bare area is a term that may apply to:
bare area of the liver
bare area of the spleen
glenoid bare area
bare area of a joint where synovium is in direct contact with bone, the site of marginal joint erosion in some inflammatory arthritides
Article
Superior rectal artery embolization
Superior rectal artery embolization is a minimally invasive endovascular technique that has a role in the management of acute lower gastrointestinal bleeding and as a potential option for the treatment of symptomatic hemorrhoidal disease, this article will focus on the latter.
Procedure
Perfor...
Case
Primary duodenal diverticulum
Published
17 Jun 2020
74% complete
Barium
Photo
Article
Intravesical prostatic protrusion
Intravesical prostatic protrusion is an anatomical feature that may be present in some patients with benign prostatic hyperplasia (BPH) being characterized by the enlargement of the prostate towards the floor of the bladder 1,2.
Clinical Presentation
Intravesical prostatic protrusion is correl...
Article
Enteric duplication cyst
Enteric duplication cyst is a broad term for a number of congenital cystic lesions that arise along the gastrointestinal tract. Please see individual articles for further information:
foregut duplication cyst
midgut duplication cyst
tailgut duplication cyst
See also
fetal enteric d...
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