[Diagnosis and surgical treatment of solitary fibrous tumor of the pelvis].

Objective: To explore the clinical diagnosis and surgical treatment of pelvic solitary fibrous tumor (SFT).

Methods: The data of nine cases of pelvic solitary fibrous tumor from April 2008 to February 2012 were reviewed retrospectively.

Results: There were 7 male and 2 female patients in this group with a median age of 56 years, of whom 6 were asymptomatic. Their CT showed the tissue density was inhomogencous. Multivisceral resections were performed in 5 patients. Microscopically, the tumor cells were shuttle-shaped, short spindle-shaped or round, and mitoses was rare, immunohistochemistry: CD34, CD99, Bcl-2, Vimentin positive rates were 100%. One patient died 34 months after the surgery, and there was no recurrence in other patients.

Conclusion: Pelvic SFT is rare. It is difficult to make an accurate diagnosis. Surgery is the most effective therapy. Multivisceral resections are needed sometimes. The prognosis is good for most patients.