title: Zahn infarct of the liver resulting from occlusive phlebitis in portal vein radicles.
abstract: A 56-yr-old man had a solitary nodular mass in the right hepatic lobe. The nodule was clinically diagnosed as hepatocellular carcinoma, and a right hepatic lobectomy was performed. The nodule had a previously undescribed histological appearance, and was finally diagnosed as a Zahn infarct with the additional feature of fibrosis. We think that the mass was produced by occlusive phlebitis in a medium-size portal vein radicle and its smaller radicles. This is the case of a very unique Zahn infarct in two respects: 1) the histological appearance (fibrosis), and 2) the fact that it was due to occlusive phlebitis in portal vein radicles. The data obtained here indicate that a special type of Zahn infarct, as represented by this case, may present with clinical information (nodular mass and neovascularity) suggestive of hepatocellular carcinoma.
authors.affiliation: First Department of Pathology, Juntendo University, School of Medicine, Tokyo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Matsumoto
authors.forename: N
authors.initials: N
authors.lastname: Kuwabara
authors.forename: H
authors.initials: H
authors.lastname: Abe
authors.forename: Y
authors.initials: Y
authors.lastname: Fukuda
authors.forename: M
authors.initials: M
authors.lastname: Suyama
authors.forename: D
authors.initials: D
authors.lastname: Fujii
authors.forename: K
authors.initials: K
authors.lastname: Kojima
authors.forename: S
authors.initials: S
authors.lastname: Futagawa
mesh_terms: D003937:Diagnosis, Differential; D005355:Fibrosis; D006801:Humans; D007238:Infarction / Q000209:etiology* / Q000473:pathology; D008099:Liver / Q000098:blood supply* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011169:Portal Vein / Q000473:pathology*; D013927:Thrombosis / Q000150:complications* / Q000473:pathology