HEPATIC HILAR INFLAMMATORY PSEUDOTUMOR MIMICKING CHOLANGIOCARCINOMA WITH CHOLANGITIS AND PHLEBITIS - A VARIANT OF PRIMARY SCLEROSING CHOLANGITIS

Citation
A. Nonomura et al., HEPATIC HILAR INFLAMMATORY PSEUDOTUMOR MIMICKING CHOLANGIOCARCINOMA WITH CHOLANGITIS AND PHLEBITIS - A VARIANT OF PRIMARY SCLEROSING CHOLANGITIS, Pathology research and practice, 193(7), 1997, pp. 519-525
Citations number
20
Categorie Soggetti
Pathology
ISSN journal
03440338
Volume
193
Issue
7
Year of publication
1997
Pages
519 - 525
Database
ISI
SICI code
0344-0338(1997)193:7<519:HHIPMC>2.0.ZU;2-P
Abstract
Inflammatory pseudotomur (IPT) of the liver is rare. We present a case of hepatic IPT mimicking cholangiocarcinoma in which the tumor was lo cated at the left porta hepatis. The patient was a 64-year-old man in whom abnormal liver function test results had been noted incidentally during an annual health checkup in 1993: the patient declined to go to the hospital for further examination. At the annual health checkup th e following year, abnormal liver function test results were noticed ag ain, and this time he did go to a hospital, where a hepatic mass was f ound. Laboratory test results were unremarkable. Based on the location of the lesion and the findings of a variety of imaging modalities, su ch as ultrasound and computed tomography examination, the lesion was p reoperatively diagnosed as hilar cholangiocarcinoma and was surgically resected. Pathologic examination of the resected lesion, however, rev ealed that it was not a true trumor but an inflammatory pseudotumor wi th marked destructive and sclerosing cholangitis mimicking primary scl erosing cholangitis (PSC) and obliterative phlebitis. Since the locati on and features of the tumor in the present case are very pertinent to the relationship between IPT and PSC, we describe its clinical and hi stologic features and discuss the findings in relation to PSC in the c ontext of our literature review.