World Journal of Medical and Surgical Case Reports Volume No 7

Case Report Open Access

Solitary Extrapleural Fibrous Tumor of Axillary Skin Diagnosed by Fine-Needle Aspiration Cytology, Coincident with Simultaneous Breast Fibroadenoma

Yuichi Kinoshita, Kosho Takasu, Naoki Hosaka, Naoto Omura, Takashi Yuri, Yuko Emoto, Katsuhiko Yoshizawa, Airo Tsubura and Nobuaki Shikata
World Journal of Medical and Surgical Case Reports 2013, 2:21



Solitary fibrous tumor (SFT) is a rare mesenchymal tumor that usually occurs in pleura, or less commonly, in the extrapleural space (extrapleural SFT).

Case presentation

Here, we report on an extrapleural SFT originating from the right axilla that occurred at about the same time as a fibroadenoma of the right breast in a 37-year-old woman. The patient noticed stiffness in her right axilla; neoplastic masses were detected in her right breast and axilla using ultrasonography. Cytology from a fine needle aspiration biopsy showed oval-to-spindle-shaped atypical cells with ropy fragments from the axilla; the sample was diagnosed as extrapleural SFT. The breast tumor was diagnosed as fibroadenoma.


Cytological reports of extrapleural SFT are few. Future case accumulation could provide data on which to base guidelines for discerning benign from malignant SFT.

Key words

Extrapleural solitary fibrous tumor, fine needle aspiration biopsy cytology, fibroadenoma of breast, case report

Download PDF    Full Text