[Malignant solitary fibrous tumor of the abdominal wall in a man].

We report the first case of malignant solitary fibrous tumor of the abdominal wall in a man. Immunohistochemical staining for CD34 and bcl-2 were positive. Surprisingly, estrogen and progesterone receptors were focally positive. Expression of steroid hormone receptor in solitary fibrous tumor was rarely reported in the literature. In a few series, these receptors were identified as a risk factor of recurrences after surgical excision. Six months after complete surgical resection of the mass, our patient has been quite well without any evidence of recurrence.