A case of intraosseous angioleiomyoma

We report a rare case of expansively growing angioleiomyoma in the proximal tibia of a 64-year-old woman. MRI revealed a well-defined area of low signal intensity on T1-weighted image and high intensity on T2-weighted image. Angiographs showed hypervascularity and vascular poolings. Microscopic examination after incisional biopsy showed an angioleiomyoma with bundles of nerve fibers.