[Two cases of giant retroperitoneal liposarcoma].
The first patient was of a 71-year-old woman who was examined for abdominal protuberance. Computed tomography (CT) and magnetic resonanc e imaging(MRI)revealed a giant tumor almost occupying the entire abdomen. En-bloc resection was performed. The tumor was 30 cm in size and weighed 6,500 g. The histological diagnosis was a well-differentiated liposarcoma. The second patient was a 72-year-old woman who visited our hospital after she had been diagnosed with an abdominal tumor by her family doctor. CT and MRI revealed a massive tumor involving various components. The tumor had invaded the left ureter and descending colon; therefore, we performed tumorectomy, left nephrectomy, and descending colectomy. The histopathological findings indicated a well-differentiated, myxoid, pleomorphic liposarcoma. The tumor recurred 4, 5, and 7 years after the first operation. By the fourth operation, the histological subtype of the tumor had changed to a dedifferentiated type.
Dept. of Surgery, Niigata Prefectural Tokamachi Hospital.
Yutaka
Y
Nakajima
Hiroyuki
H
Fukunari
Tomotaka
T
Kato
Jun
J
Yoshino
Chisato
C
Okajima
Kenji
K
Shitara
Tetsuji
T
Hayashi
Gen
G
Watanabe
Yoichi
Y
Ajioka
D000368:Aged; D003082:Colectomy; D005260:Female; D006801:Humans; D008080:Liposarcoma / Q000473:pathology / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D064847:Multimodal Imaging; D009392:Nephrectomy; D012008:Recurrence; D012186:Retroperitoneal Neoplasms / Q000473:pathology / Q000601:surgery*; D014057:Tomography, X-Ray Computed