Items tagged “abdomen”
17 results found
Article
Anterior pararenal space
The anterior pararenal space is the portion of the retroperitoneum that lies between the posterior surface of the parietal peritoneum and the anterior reflection of the renal fascia.
Gross anatomy
It contains the retroperitoneal portion of the duodenum (distal D1 to D3), the pancreas and retro...
Article
Ascending lumbar communicant vein
The ascending lumbar communicant vein is a communication between the left ascending lumbar vein and the left renal vein. Because of its retroperitoneal location, when dilated, it may be mistaken for a lymph node on non-contrast studies with thick collimation.
The image shows the left renal vein...
Article
Sarcoidosis (abdominal manifestations)
Sarcoidosis is a systemic inflammatory disease of unknown origin characterized by the formation of non-caseating granulomas. Virtually any organ system may be involved. Although less common than pulmonary and mediastinal disease, abdominal sarcoidosis can mimic more common infectious or neoplast...
Article
Tuberculous peritonitis
Tuberculous peritonitis is a form of extrapulmonary tuberculosis affecting the peritoneum. It is frequently seen in association with other forms of gastrointestinal tuberculosis 6.
Epidemiology
Tuberculosis is usually confined to the respiratory system but may involve any organ system 1. Extra...
Article
Ascending colon
The ascending colon is the second part of the large bowel.
Gross anatomy
The ascending colon is the continuation of the cecum superior to the ileocecal valve. It is secondarily retroperitoneal, although it has its own mesentery in approximately 25% of patients and is 15 cm in length 1,2.
The ...
Article
Iliopsoas compartment
The iliopsoas compartment is an extra-retroperitoneal space that runs along the posterior aspect of the abdomen and pelvis and extends into the thigh.
It should be noted that the posterior abdominal wall does not have a consensus definition and that psoas muscles are sometimes included as the p...
Article
Inguinal ligament
The inguinal ligament (also known as Poupart's ligament or the fallopian ligament) is a fibrous band extending from the anterior superior iliac spine to the pubic tubercle. It is an important anatomical landmark and denotes the transition of the pelvis to the lower limb.
Gross anatomy
The ingu...
Article
Posterior right subhepatic space
The posterior right subhepatic space (also known as the hepatorenal fossa or Morison pouch) separates the liver from the right kidney. It is a potential space that is not filled with any fluid in normal conditions.
Gross anatomy
The posterior right subhepatic space is a subcompartment of the s...
Article
Small bowel obstruction (summary)
This is a basic article for medical students and other non-radiologists
Small bowel obstruction (SBO) accounts for 80% of all mechanical intestinal obstruction; the remaining 20% result from large bowel obstruction. It has a mortality rate of 5.5%.
Reference article
This is a summary article;...
Article
Large bowel obstruction (summary)
This is a basic article for medical students and other non-radiologists
Large bowel obstruction (LBO) occurs when there is mechanical obstruction of the large bowel and is often impressive on imaging on account of the ability of the large bowel to massively distend. This condition requires prom...
Article
Bowel perforation (summary)
This is a basic article for medical students and other non-radiologists
Bowel perforation is an acute surgical emergency where there is a release of gastric or intestinal contents into the peritoneal space.
Reference article
This is a summary article; read more in our article on bowel perfora...
Article
Sigmoid volvulus vs cecal volvulus
The following points may be helpful to distinguish between sigmoid volvulus and cecal volvulus on plain film.
Sigmoid volvulus
arises in the pelvis (left lower quadrant)
extends towards the right upper quadrant
ahaustral in appearance
sigmoid volvulus causes obstruction of the distal large ...
Article
Lacunar ligament
The lacunar ligament, also known as Gimbernat’s ligament, is a crescent-shaped ligament that extends between the inguinal ligament and pectineal ligament, close to their point of insertion to the pubic tubercle.
Gross anatomy
The lacunar ligament is an extension of the medial end of the inguin...
Article
Fecal impaction
Fecal impaction is the inability to spontaneously evacuate solid feces. It is common in the elderly population. A severe form of fecal impaction is often referred to as a fecaloma.
Terminology
Fecal loading is a poorly defined term but generally refers to the volume of fecal material in the c...
Article
Rosenbach sign (hemiplegia)
Rosenbach sign or phenomenon is a clinical sign described in hemiplegia.
The sign refers to the absence of an abdominal wall skin reflex when stroking the paralyzed side of a patient; conversely on the unaffected side, the reflex is normal 1.
See also
Rosenbach gave his name to two other cli...
Article
Double beak sign
The double beak sign refers to the sudden tapering that two adjacent intestinal loops show in the internal hernia at the transition point of the closed loop obstruction.
The marked reduction in caliber results in distension of the afferent and efferent intestinal loops.
History and etymology
I...
Article
Right gastric vein
The right gastric vein, also known as pyloric vein, forms part of the venous drainage network of the stomach and proximal duodenum. It is a tributary of the portal vein.
Gross anatomy
Location
The right gastric vein courses parallel to the right gastric artery adjacent to the lesser curvature...
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