2004 Volume 97 Issue 3 Pages 217-223
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.
