5,461 results found
Case
Bone infarcts
Published
15 Sep 2016
92% complete
MRI
Article
Glomangioma
Glomangiomas, also known as glomus tumors, are benign vascular tumors typically seen at the distal extremities. On imaging, they characteristically present as small hypervascular nodules under the fingernail.
Terminology
These tumors should not be confused with paragangliomas, which were form...
Article
Lymphocele
Lymphoceles are collections of lymphatic fluid that happen most frequently in the postoperative setting. Although they can occur in potentially any part of the body where lymphatic tissue is resected (e.g. lymphadenectomy) or injured in trauma, they are most commonly seen in the retroperitoneum....
Article
Branches of the external carotid artery (mnemonic)
Mnemonics for the branches of the external carotid artery abound. A few colorful examples include:
Some American Ladies Found Our Pyramids Most Satisfactory
Some Anatomists Like Freaking Out Poor Medical Students
She Always Likes Friends Over Papa, Mama, and Sister
There are many many many ...
Article
Superior rectal artery
The superior rectal artery is an artery that supplies blood to the rectum down to the level of the levator ani 2.
Summary
origin: the terminal branch of the inferior mesenteric artery is the superior rectal artery
course: descends into the pelvic cavity in the sigmoid mesocolon, crossing the ...
Article
Aortoesophageal fistula
Aortoesophageal (aorto-esophageal) fistulae are pathologic communications between the aorta and esophagus and result in life-threatening upper gastrointestinal hemorrhage. They are fatal in the absence of prompt management.
Epidemiology
Aortoesophageal fistulas are a rare entity that accounts...
Article
Basilar artery aneurysm
Basilar artery aneurysms are less common than anterior circulation aneurysms, and rupture less frequently, but their critical location necessitates careful evaluation.
Unruptured basilar artery aneurysms occurs in 3% of all intracranial aneurysms 4.
Radiographic features
CT
may present as ...
Case
MCA territory infarction
Published
12 Apr 2013
89% complete
MRI
Article
Urethral stricture
Urethral strictures are relatively common and typically occur either in the setting of trauma or infection.
Epidemiology
The demographics of the affected population is dictated by the etiology, but in general, it is safe to say that adult males make up the vast majority of cases.
Clinical pre...
Case
Polytrauma with renal artery injury and active extravasation
Published
10 Mar 2020
71% complete
CT
Case
Uterine and pelvic arteriovenous malformation
Published
16 May 2013
65% complete
MRI
Article
Hepatocystic triangle
The hepatocystic triangle (or Calot triangle) is a small triangular space at the porta hepatis of surgical importance as it is dissected during cholecystectomy. Its contents, the cystic artery and cystic duct, must be identified before ligation and division to avoid intraoperative injury.
Gros...
Case
Tuberculous mycotic abdominal aortic aneurysm
Published
07 Nov 2019
92% complete
CT
Case
Hepatic artery pseudoaneurysm
Published
27 Jan 2023
92% complete
CT
Case
Normal artery (histology)
Published
27 May 2020
60% complete
Pathology
Article
Klebsiella
Klebsiella is a genus of Gram-negative, oxidase-negative, rod-shaped bacteria, which is relatively commonly encountered in the healthcare environment. It has numerous species, including K. pneumoniae, K. aerogenes, and K. rhinoscleromatis 1. Klebsiella may cause a range of infections, most commo...
Case
Cerebral edema due to infarction
Published
05 Dec 2011
36% complete
MRI
Article
Systemic lupus erythematosus (CNS manifestations)
Central nervous system manifestations of systemic lupus erythematosus (CNS lupus), also known as neuropsychiatric systemic lupus erythematosus (NPSLE), describe a very diverse range of neuropsychiatric manifestations that are secondary to systemic lupus erythematosus (SLE) in the central nervous...
Case
Atrial septal defect
Published
24 May 2009
54% complete
X-ray
Article
Portal venous gas
Portal venous gas, also known as pneumatosis portalis, is the accumulation of gas in the portal vein and its branches. It needs to be distinguished from pneumobilia, although this is usually not too problematic when associated findings are taken into account along with the pattern of gas (i.e. p...
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