Journal List > Korean J Gastroenterol > v.58(3) > 1006853

Ahn, Kim, Moon, Choi, Kim, Jung, Lee, and Ko: A Case of Perforated Xanthogranulomatous Cholecystitis Presenting as Biloma

Abstract

Xanthogranulomatous cholecystitis is an unusual inflammatory disease of the gallbladder characterized by severe proliferative fibrosis and the accumulation of lipid-laden macrophages in areas of destructive inflammation. Its macroscopic appearance may occasionally be confused with gallbladder carcinoma. We present a case of perforated xanthogranulomatous cholecystitis presenting as biloma. An 80-year-old woman was referred to our hospital with a 1-week history of abdominal pain and febrile sensation. Abdominal CT showed a biloma in the subhepatic area. The follow-up CT showed that the biloma increased in size. Therefore, ultrasonography-guided aspiration was performed. The aspirated fluid/serum bilirubin ratio was greater than 5, which was strongly suggestive of bile leakage complicated by perforated cholecystitis. She underwent a laparoscopic cholecystectomy with cyst aspiration and adhesiolysis. A histological diagnosis of perforated xanthogranulomatous cholecystitis was made.

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Fig. 1.
CT scan of abdomen. It showed a focal gallbladder wall thickening and fluid collection in the subhepatic space. There was no definitive connection between the fluid collection and the gallbladder.
kjg-58-153f1.tif
Fig. 2.
Follow-up CT scan of abdomen. It showed that the cystic mass increased in size (11×5 cm) with wall enhancement in the subhepatic space.
kjg-58-153f2.tif
Fig. 3.
Gross findings of the specimen. The gallbladder was characterized by a thickened wall with poorly circumscribed yellowish granular necrotic areas and perforation (arrow).
kjg-58-153f3.tif
Fig. 4.
Microscopic findings of the specimen. (A) The ulcerated mucosa of the gallbladder was stained with bile pigments (H&E stain, ×40). (B) The subepithelial connective tissue of the gallbladder showed a massive aggregation of foamy macrophages. There were also infiltration of lymphocytes, plasma cells and occasional multinucleated giant cells. Many macrophages contained both ceroid pigments and cholesterol (H&E stain, ×400).
kjg-58-153f4.tif
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