Widespread abdominal ischemia
Active lower gastrointestinal bleeding - diverticular
Gallstone ileus
Polytrauma with renal artery injury and active extravasation
Pott disease
Gastric remnant obstruction due to adenocarcinoma after remote roux-en-y gastric bypass
Transomental internal hernia involving the splenic flexure
Massive desmoid tumor
Petersen internal hernia resulting in volvulus of the entire small bowel
Pancreatic body/tail adenocarcinoma with ovarian metastases
Sialolithiasis and sialoadenitis
Metastatic small bowel carcinoid tumor
Acute uncomplicated appendicitis
Transomental internal hernia leading to closed loop obstruction
Primary gastric neuroendocrine tumor
Infiltrative pancreatic adenocarcinoma - mimicking pancreatitis
Infectious pancolitis and complicated pyelonephritis
Periureteric plasmacytomas
Infectious labyrinthitis
Incarcerated umbilical hernia
Liver abscess with hepatic vein thrombosis
Nutmeg liver
Tubo-ovarian abscess
Perforated pyloric channel ulcer with free spillage of oral contrast
Closed loop small bowel obstruction - omental adhesion causing "internal hernia"
Ulcerative colitis
Septic thrombophlebitis of the intrahepatic portal vein
Cecal volvulus
Ruptured Stanford type A aortic dissection
Colocolic intussusception due to large lipoma
Peritoneal and hepatic hydatid cysts
Large bowel (cecal) lymphoma with lymphomatosis
Otogenic brain abscess due to complicated otitis media and mastoiditis
Toxic megacolon
Small bowel obstruction due to surgical internal hernia defect
Ovarian serous cystadenoma
Radiation-induced enteritis resulting in small bowel obstruction
Rupturing ascending aortic pseudoaneurysms - with repair
Power washer injury - great toe
Acute appendicitis, heterotaxy syndrome
Subacute hypersensitivity pneumonitis versus respiratory bronchiolitis
Extensive metastatic inflammatory breast carcinoma
Jejunal diverticulitis
Malignant immature ovarian teratoma, with intraperitoneal rupture
Inferior vena cava leiomyosarcoma
Intraperitoneal bladder rupture
Space of Retzius hematoma
Closed loop obstruction - internal hernia into nephrectomy bed
Circumcaval/retrocaval ureter
Acute IVC and iliac thrombosis
Ruptured ovarian cyst with active bleeding and hemoperitoneum
Polycythemia with dense vessels on head CT
Widespread tuberculous adenitis
"Apple core" colonic adenocarcinoma with obstruction and fecalization
Gossypiboma
Tuberculous peritonitis causing closed-loop small bowel obstruction
Small bowel lymphoma
Xanthogranulmatous pyelonephritis with rupture
Staghorn calculus
Active neurocysticercosis before and after therapy
Tuberculous spondylitis (Pott disease) with large psoas abscesses
Organ of Zuckerkandl paraganglioma
Ovarian hyperstimulation syndrome
Splenic and hepatic tuberculous granulomatosis
Gastric outlet obstruction due to adenocarcinoma
Sclerosing mesenteritis
Septo-optic dysplasia with closed lip schizencephaly
Vaping-induced lung injury
Colonic intussusception due to adenocarcinoma
Obstructive splenic flexure colonic adenocarcinoma
Hydatid disease - abdominal and pelvic
Small bowel obstruction, fecalization at the transition point
IgG4-related autoimmune cholangitis, pancreatitis, and pseudotumor
Budd-Chiari syndrome
Graft versus host disease
Williams-Campbell syndrome
Fibrous dysplasia - femur and pelvis
Ovarian vein thrombosis
Chronic ostemyoelitis of the femur with long sinus tract
Massive aortic aneurysm, dissection and pericardial effusion
Splenosis - history of uterine leiomyosarcoma
Large uterine fibroids
Klippel-Trénaunay-Weber syndrome
Lipoblastoma
Complex polytrauma with diaphragmatic rupture, aortic pseudoaneurysm, solid organ injury
Supraglottitis
Constrictive pericarditis
Gallstone ileus
Esophageal duplication cyst
Cystic thyroid carcinoma (superior mediastinal mass)
Pyloric signet cell gastric carcinoma
Infiltrative mesenteric desmoid tumor, main duct mucinous neoplasm of the pancreas
Strangulated fat-containing femoral hernia
Small bowel obstruction - indirect inguinal hernia
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