Items tagged “rg_40_2_edit”

22 results found
Article

Mesenteric ischemia

Mesenteric ischemia, also commonly referred to as bowel or intestinal ischemia, refers to vascular compromise of the bowel and its mesentery that in the acute setting has a very high mortality if not treated expediently. Mesenteric ischemia is far more commonly acute than chronic in etiology. Th...
Article

Hereditary non-polyposis colorectal cancer

Hereditary non-polyposis colorectal cancer (HNPCC), also known as Lynch syndrome, is an autosomal dominant condition which predisposes to a host of malignancies, including colorectal cancer. It is considered the most frequent form of hereditary colorectal cancer. Diagnosis requires evaluation us...
Article

Spinal arachnoid cyst

Spinal arachnoid cysts are relatively uncommon and may be either intradural (type III meningeal cyst) or extradural (type IA meningeal cyst). This article specifically focuses on spinal arachnoid cysts. For a general discussion of arachnoid cysts, refer to the main article: arachnoid cyst. Epi...
Article

Crohn disease

Crohn disease, also known as regional enteritis, is an idiopathic inflammatory bowel disease characterized by widespread discontinuous gastrointestinal tract inflammation. The terminal ileum and proximal colon are most often affected. Extraintestinal disease is common. Epidemiology The diagnos...
Article

Arterial occlusive mesenteric ischemia

Arterial occlusive mesenteric ischemia can be a life-threatening event related to obstruction of the mesenteric arteries, most commonly the superior mesenteric artery (SMA), supplying the small bowel and colon. It is the most common cause of mesenteric ischemia.  Epidemiology  An acute occlusi...
Article

Elbow dislocation

Elbow dislocation is the second most common large joint dislocation in adults and the most common in children.  Epidemiology Elbow dislocations are common and account for 10-25% of all elbow injuries in the adult population 1. They are the most common dislocation in children 4. Associations ...
Article

Testicular torsion

Testicular torsion occurs when a testis torts on the spermatic cord resulting in the cutting off of blood supply. The most common symptom is acute testicular pain and the most common underlying cause, a bell-clapper deformity. The diagnosis is often made clinically but if it is in doubt, an ultr...
Article

Adynamic ileus

Adynamic ileus is the failure of passage of enteric contents through the small bowel and colon that are not mechanically obstructed; i.e. it represents a paralysis of intestinal motility. Clinical presentation Patients may be asymptomatic or present with symptoms similar to mechanical bowel ob...
Article

Anomalous pancreaticobiliary junction

An anomalous pancreaticobiliary junction, also known as pancreaticobiliary maljunction, describes the abnormal junction of the pancreatic duct and common bile duct that occurs outside the duodenal wall to form a long common channel (>15 mm) 5. Epidemiology The incidence varies from 1.5% to 3.2...
Article

Epididymitis

Epididymitis refers to inflammation of the epididymis and may be associated with inflammation extending to the testis itself, in which case the term epididymo-orchitis is used. This should be distinguished from isolated orchitis, which is by comparison much less common.  Epidemiology There are...
Article

Peutz-Jeghers syndrome

Peutz-Jeghers syndrome is one of the polyposis syndromes. It has an autosomal dominant inheritance and is characterized by: multiple hamartomatous polyps, most commonly involving the small intestine (predominantly the jejunum), but also colon and stomach; mouth and esophagus are spared mucocut...
Article

Fetal hepatomegaly

Fetal hepatomegaly (or more simply an enlarged fetal liver) can occur in number of situations. It can occur with or without fetal splenomegaly. Pathology Etiology in utero infections: the commonest cause   fetal cytomegalovirus infection (CMV) 3 fetal parvovirus B19 infection in utero syph...
Article

Spinal neurenteric cyst

Spinal neurenteric cysts are a rare type of foregut duplication cyst, accounting for ~1% of all spinal cord tumors. They are usually classified as spinal or intracranial and are associated with vertebral or CNS abnormalities respectively.  Pathology Neurenteric cysts result from incomplete res...
Article

Small bowel ischemia

Small bowel ischemia may be a life-threatening condition, arising from any one of numerous causes of disturbance of the normal blood flow through the small bowel wall.  Pathology Etiology It can be divided into acute and chronic forms, with the main underlying etiologies (each discussed separ...
Article

Orchitis

Orchitis (plural: orchitides) is an infection of the testis, which is rarely isolated, and when in conjunction with the epididymis is called epididymo-orchitis. Pathology Usually, bacteria retrogradely seed into the testis from the bladder or prostate. It can also be secondary to viral infecti...
Article

Chronic mesenteric ischemia

Chronic mesenteric ischemia, also known as intestinal angina, is an uncommon type of intestinal ischemia usually affecting elderly patients as a result of significant stenosis of two or more mesenteric arteries. Epidemiology Normally seen in patients older than 60 years of age and is three tim...
Article

MR enteroclysis

MR enteroclysis is an invasive technique for MRI evaluation of the small bowel, and is mostly used for evaluation of Crohn disease. NB: This article is intended to outline some general principles of protocol design. The specifics will vary depending on MRI hardware and software, radiologist's a...
Article

CT enterography (protocol)

CT enterography (CTE) is a non-invasive technique for the diagnosis of small bowel disorders. Indications Indications for CT enterography include 4,8: Crohn disease ​diagnosis and complications (primarily) most common indication suspected small bowel bleeding, usually performed after negat...
Article

MR enterography

MR enterography (MRE) is a non-invasive technique for the diagnosis of small bowel disorders. Note: This article is intended to outline some general principles of protocol design. The specifics will vary depending on MRI hardware and software, radiologist's and referrer's preference, institutio...
Article

Bowel wall thickening

Bowel wall thickening is a useful finding on imaging studies and has a number of different causes. Pathology The reason for bowel wall thickening depends on the underlying etiology but includes submucosal edema, hemorrhage, and neoplastic infiltration. Radiographic features In describing bow...

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.