Malignant fibrous histiocytoma (undifferentiated high-grade pleomorphic sarcoma) occurring in tuberous sclerosis: a case report - Fleury, Raul Negrão; Damante, José Humberto; Soares, Cleverson Teixeira; SantAna, Eduardo; Mello Júnior, Edgard José Franco; Moreira, Carla Ruffeil (Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics, 2007)