Vol.97 No.3 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 97 No. 3 March 2004
Solitary Fibrous Tumor of the Lacrimal Sac
Satoshi Ohno
(Toyo-oka Hospital)
Shinzo Tanaka, Yasuyuki Hiratsuka, Ryo Asato and Juichi Ito
(Kyoto University Graduate School of Medicine)
Kouichi Ohmori
(Fukushima Medical University School of Medicine)
Solitary fibrous tumor (SFT) is a rare mesenchymal neoplasm typically arising in the pleura, but it has recently been reported in various extrapleural sites. We report a case of SFT arising in the lacrimal sac.
A 32-year-old man presented with a 2-year history of slowly progressive right proptosis. Computed tomography demonstrated a well-circumscribed low density mass in the inferomedial orbit. Surgical excision was performed. Immunohistochemically, the tumor cells were stained for CD34 and bcl-2, leading to a diagnosis of SFT. There has been no evidence of recurrence 12 months postoperatively. Because SFT, especially with a high mitotic count, may recur after excision, careful follow-up over a prolonged period is important.
Key words : solitary fibrous tumor, lacrimal sac, proptosis, orbit, CD34