title: Gallbladder carcinoma in a pregnant patient with Crohn's disease complicated with gallbladder involvement.
abstract: Primary gallbladder (GB) carcinoma and Crohn's disease (CD) of the GB are individually rare. We present a case of a pregnant woman with CD found to have GB involvement and primary GB carcinoma. A 34-year-old female at 6 wk gestation with a 21 year history of CD of uncertain extent presented with 3 mo of diarrhea, urgency and abdominal pain. During work-up, she was found to have elevated transaminases and an abnormal alkaline phosphatase. Imaging revealed two gallbladder polyps both greater than 1 cm in size. Resection and histological evaluation was consistent with Crohn's involvement of the GB, poorly differentiated adenocarcinoma of the GB with invasion through the muscularis propria and matted lymph nodes in the porta hepatis positive for metastatic carcinoma (stage pT2N1). Six cases of CD involving the GB, two cases of primary GB carcinoma in CD, and ten cases of cholangiocarcinoma in pregnancy have been published. This is the only case that describes all three factors. Common features in CD of the GB include acute cholecystitis, ileal involvement, and presence independent of active intestinal disease. Common features in CD patients with GB malignancy include younger age of detection, a long history of CD, extensive colonic and ileal involvement of disease, the absence of cholelithiasis, and pre-existing gallbladder disease (primary sclerosing cholangitis and gallbladder polyps). Pregnancy is specific to this case. The role of CD in the development of GB malignancy is not well understood nor is the contribution of pregnancy to the spread of disease. Chronic inflammation and immunosuppression compounded by hormonal influence is implicated.
authors.affiliation: Shada Attraplsi, Rima M Shobar, Graduate College, Rush University, Chicago, IL 60612, United States.
authors.forename: Shada
authors.initials: S
authors.lastname: Attraplsi
authors.forename: Rima M
authors.initials: RM
authors.lastname: Shobar
authors.forename: Ihab
authors.initials: I
authors.lastname: Lamzabi
authors.forename: Rana
authors.initials: R
authors.lastname: Abraham
keywords: Cholangiocarcinoma; Crohn’s disease; Gallbladder; Gallbladder carcinoma; Inflammatory bowel disease
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