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Fine‐needle aspiration biopsy as an adjunct to the diagnosis of a rare adnexal tumor of hair follicle origin: Trichoblastoma
Author(s) -
Cheng Lirong,
Binder Scott W.,
Gajjar Nupoor A.,
Hirschowitz Sharon L.
Publication year - 2003
Publication title -
diagnostic cytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.417
H-Index - 65
eISSN - 1097-0339
pISSN - 8755-1039
DOI - 10.1002/dc.10353
Subject(s) - medicine , biopsy , fine needle aspiration , context (archaeology) , pathology , hair follicle , cytopathology , radiology , cytology , paleontology , biology , endocrinology
Abstract Fine‐needle aspiration biopsy (FNAB) is a technique used increasingly for the investigation of primary and metastatic cutaneous tumors. Trichoblastoma is a rare benign skin appendage tumor of hair germ origin. We report the diagnosis by FNAB of a rare giant subcutaneous tumor, trichoblastoma, from an 81‐yr‐old woman with a subcutaneous mass in the interscapular area of her back. The cytologic characteristics of the tumor are discussed in detail in this report. The findings have been compared with the histologic features of the tumor after surgical excision. We have characterized several distinctive cytologic features that may aid in the diagnosis of this rare neoplasm. While most reported cases have been diagnosed from surgical excisional biopsy specimens, FNAB may also be a valuable tool for the accurate diagnosis of trichoblastoma in the proper clinical context. Diagn. Cytopathol. 2003;29:225–228. © 2003 Wiley‐Liss, Inc.