Orbital Giant Cell Angiofibroma Recurring as a Solitary Fibrous Tumor

In Brief Giant cell angiofibroma has recently been hypothesized to be a clinicopathologic variant of solitary fibrous tumor. The authors report a case of an orbital giant cell angiofibroma that recurred as a solitary fibrous tumor 4 years later. The report strongly supports the hypothesis that giant cell angiofibroma and solitary fibrous tumor are related. An orbital giant cell angiofibroma recurred at the same location as a solitary fibrous tumor 4 years later, suggesting that these 2 tumors may be variants of one another rather than distinct clinical lesions.