RT Journal Article SR Electronic T1 Leiomyosarcoma of the bladder in a 16-year-old girl with a history of cyclophosphamide therapy for bilateral retinoblastoma during infancy JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 531 OP 533 VO 27 IS 4 A1 Al-Zahrani, Ali A. A1 Kamal, Baher A. A1 Eldarawani, Hamed M. A1 Hashim, Tariq M. YR 2006 UL http://smj.org.sa/content/27/4/531.abstract AB A 16-year-old female with bladder leiomyosarcoma had a history of bilateral retinoblastoma at 6 months of life. She received cyclophosphamide chemotherapy after surgical enucleation. In this report, we discussed the possible role of retinoblastoma or cyclophosphamide as a target for the development of bladder leiomyosarcoma.