Unclassified epithelioid vascular tumor with hemangioendotheliomatous features and lymphatic differentiation

Yumi Oshiro, Kenichi Kohashi, Yoshinao Oda, Masazumi Tsuneyoshi, Yoshitaka Shono

Research output: Contribution to journalArticle

Abstract

Reported herein is an unusual vascular tumor that arose in the little finger of a 10-year-old boy. The tumor consisted of a vaguely demarcated nodular mass, which was located in the subcutaneous layer and measured 1 cm in diameter. Microscopic characteristic findings of this tumor were epithelioid nests, admixed with focal components with retiform features, intraluminal papillary tufts, and spindle cells. These features resemble those of subtypes of hemangioendotheliomas. On immunohistochemistry CD31, CD34 and D2-40 were diffusely expressed in the tumor cells, representing prominent lymphatic differentiation. These findings are not characteristic of any established types of vascular tumors. The differential diagnosis for the current peculiar tumor are discussed.

Original languageEnglish
Pages (from-to)410-414
Number of pages5
JournalPathology International
Volume59
Issue number6
DOIs
Publication statusPublished - Jun 2009

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine

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