title: MR appearance of clear cell sarcoma of tendons and aponeuroses (malignant melanoma of soft parts): radiologic-pathologic correlation.
abstract: Clear cell sarcoma of tendons and aponeuroses (CCSTA) is a rare aggressive soft tissue tumor that frequently produces melanin. Its MR findings are rarely described in the literature. We report the case of a previously healthy 54-year-old man with clear cell sarcoma of the thigh who presented with a large painless mass of 1 year's duration. MR imaging showed the tumor to be of high signal intensity on fast spin-echo and STIR images. Both fine needle aspiration and excisional biopsy showed abundant melanin pigments. Histologic diagnosis was compatible with CCSTA.
authors.affiliation: Department of Diagnostic Radiology, American University Medical Center, American University of Beirut, 113-6044, Beirut, Lebanon. mh17@aub.edu.lb
authors.forename: Mukbil
authors.initials: M
authors.lastname: Hourani
authors.forename: Nabil
authors.initials: N
authors.lastname: Khoury
authors.forename: Bassem
authors.initials: B
authors.lastname: Mourany
authors.forename: Nina Salem
authors.initials: NS
authors.lastname: Shabb
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008545:Melanoma / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D011859:Radiography; D018227:Sarcoma, Clear Cell / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D012983:Soft Tissue Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D013710:Tendons / Q000000981:diagnostic imaging* / Q000473:pathology*