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Ciliated hepatic foregut cyst mimicking neoplasm

Wu, Mark Li-cheng, MD1,*; Abecassis, Michael M, MD1; Rao, Sambasiva M, MD1

American Journal of Gastroenterology: November 1998 - Volume 93 - Issue 11 - p 2212–2214
doi: 10.1111/j.1572-0241.1998.00616.x
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We describe a ciliated hepatic foregut cyst that was clinically considered neoplastic because it was large, bilocular, and associated with a high serological level of carbohydrate antigen 19-9 (CA 19-9). Histologically, the wall of the cyst showed characteristic pseudopapillae lined by ciliated stratified columnar epithelium with interspersed goblet cells and underlying smooth muscle. The epithelium was strongly immunoreactive for CA 19-9. We therefore conclude that large size, multilocularity, and elevated CA 19-9 do not exclude ciliated hepatic foregut cysts from diagnostic consideration.

1Departments of Pathology and Surgery, Northwestern Memorial Hospital, Chicago, Illinois, USA

*Passavant 316, Department of Pathology, Northwestern Memorial Hospital, 303 East Superior Street, Chicago, IL 60611

© The American College of Gastroenterology 1998. All Rights Reserved.
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