Parachordoma with multiple metastases.
We present a very rare case of parachordoma with local aggressiveness and widespread metastases. A 68-year-old male presented with a mass in his left calf. The lesion was depicted as a poorly marginated mass with inhomogeneous signal intensity on magnetic resonance imaging. The tumor invaded surrounding muscles, neurovascular bundles, and bones. Widespread metastasis to lung, bone, and skin developed after amputation surgery. The histologic features of primary and metastatic lesions were the same and consistent with parachordoma.
Abe
Satoshi
S
Department of Orthopedic Surgery, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8605, Japan. satoshi@med.teikyo-u.ac.jp
Imamura
Tetsuo
T
Harasawa
Arimi
A
Ishida
Tsuyoshi
T
Unno
Kazutoshi
K
Tateishi
Akio
A
Tokizaki
Toru
T
Yorikawa
Jyun
J
Matsushita
Takashi
T
D000368:Aged; D001859:Bone Neoplasms / Q000556:secondary*; D006801:Humans; D007866:Leg / Q000473:pathology; D008175:Lung Neoplasms / Q000556:secondary*; D008297:Male; D019042:Muscle Neoplasms / Q000556:secondary*; D011859:Radiography; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery