Right-sided colonic diverticulitis mimicking acute cholecystitis in pregnancy: case report and laparoscopic treatment.

Right-sided colonic diverticulitis is an uncommon disorder that most frequently mimics appendicitis. During pregnancy, displacement of the diseased cecum and ascending colon into the right upper quadrant may result in symptomatology that mimics cholecystitis. A 37-year-old white woman with a history of previous benign incidental appendectomy presented at 20 weeks' gestation with right upper abdominal pain and nausea for 2 days. Significant findings included local rebound tenderness and palpable fullness over the gallbladder, leukocytosis, and low-grade fever, but otherwise unremarkable routine serum laboratory test results and sonographic evidence of biliary tract disease. Cholescintigraphy was rejected by the patient. Persistence of symptoms for 3 hospital days despite administration of broad-spectrum parenteral antibiotics prompted surgical intervention. Laparoscopy demonstrated a normal-appearing gall-bladder and an acutely infected, solitary diverticulum of the midascending colon with adhesions to the omentum and to the parietal peritoneum near the gallbladder. Adhesiolysis, omental biopsy, and peritoneal drainage were performed endoscopically. The patient recovered uneventfully and delivered vaginally at term without fetal or maternal complications. Right-sided colonic diverticulitis may present during pregnancy and may mimic symptoms of acute cholecystitis. Laparoscopic treatment of a solitary, acutely infected colonic diverticulum is feasible in this setting.