MCQ - Peritoneum abscess, Mesentary

PelvisQ

• Right subhepatic space
• Pelvic cavity is the most dependent area of the peritoneal cavity in the upright positionQ

• Acute pancreatitisQ.
• Perforated gastric ulcer rarely causes a collection here because the potential space is obliterated by adhesions.

Pelvis

• The most characteristic symptoms are diarrhea and passage of mucus in the stools. Q
• Rectal examination reveals a bulging of the anterior rectal wallQ,

• In women, vaginal drainage through the posterior fornix (Posterior colpotomy) is often chosenQ.
• In other cases, when the abscess is definitely pointing into the rectum, rectal drainage is employedQ.
• Laparotomy is almost never necessary

Stalk after polypectomy.

Sigmoid colonQ

Left lateral decubitus projectionQ, Patient should be in that position for 10 minQ at least for air to rise up, even 1 ml of air can be detected

Interposition of colon between liver and diaphragm can mimic pneumoperitoneumQ

Carbon dioxide has the advantage of being noncombustible and rapidly absorbed from the peritoneal cavity; however, it may lead to hypercarbia in patients with significant cardiopulmonary diseaseQ.

T12 vertebraQ

• Duodenojejunal flexure on the left side of L2 vertebraQ
• Upper part of right sacroiliac jointQ
• Root of mesentery is 15cm long.

• 1. 4th (ascending) and 3rd (horizontal) part of duodenumQ
• 2. Abdominal aortaQ
• 3. IVCQ
• 4. Right ureterQ
• 5. Right psoas majorQ
• 6. Right testicular or ovarian vesselsQ

Between 6th and 8th post-operative dayQ

Syndrome of acute right lower quadrant abdominal pain associated with mesenteric lymph node enlargement and a normal appendixQ.

Yersinia enterocolitica has been associated with this syndrome in childrenQ

Peritoneal cavityQ

Parietal (anterior) peritoneumQ

Pelvic peritoneumQ

Metamorphosis of mesenchymal cellsQ

• Duodenal perforation is usually sterile
• Intestinal perforation is usually infected

• Loose body may come from an appendix epiploicaQ that has undergone axial rotation followed by necrosis of its pedicle and detachment but they are also found in those who suffer from subacute attacks of pancreatitisQ.
• These hyaline bodies attain the size of a pea or bean and contain saponified fat surrounded by fibrin.
• Peritoneal loose bodies almost never cause symptomsQ

• A retroperitoneal lipoma sometimes undergoes myxomatous degeneration, a complication that does not occur in a lipoma in any other part of the bodyQ.
• Retroperitoneal lipoma is often malignant (liposarcoma) and may increase rapidly in sizeQ.

Malignant mesotheliomaQ