Radiologically and histologically mixed liposarcoma: a report of two biphasic cases.
We report two cases of liposarcomas showing biphasic patterns, radiologically and histologically. The first case was a 52-year-old man with a 17 x 12 cm intramuscular tumor in the right thigh. MR imaging revealed a mass composed of two components: a fat component and another soft tissue component. Histological diagnosis revealed mixed-type liposarcoma consisting of well-differentiated and myxoid liposarcoma. The second case was a 62-year-old man with a 22 x 15 cm intramuscular tumor in the left calf. MR imaging showed a mass composed of fat and non-fat components. The histological diagnosis was well-differentiated and pleomorphic liposarcoma.
Departments of Orthopaedic Surgery and Pathology, Tohoku University School of Medicine, 1-1 Seiryo-machi, Sendai, Miyagi 980-8547, Japan. t-irie@gonryo.med.tohoku.ac.jp
Taichi
T
Irie
Masahito
M
Hatori
Mika
M
Watanabe
Shigeru
S
Ehara
Syoichi
S
Kokubun
D003937:Diagnosis, Differential; D006801:Humans; D008080:Liposarcoma / Q000175:diagnosis / Q000473:pathology*; D018208:Liposarcoma, Myxoid / Q000175:diagnosis / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D019042:Muscle Neoplasms / Q000175:diagnosis / Q000473:pathology*; D012983:Soft Tissue Neoplasms / Q000175:diagnosis / Q000473:pathology*