Intra-abdominal and retroperitoneal liposarcomas.
Nine primary intra-abdominal or retroperitoneal liposarcomas, of which eight were recurrent tumors, were surgically resected and enrolled in this study. Histopathological examination of primary tumors revealed that the number of well-differentiated, pleomorphic and myxoid type was two, four and three, respectively. In two recurrent cases, histological differentiation changed from well-differentiated type into myxoid or pleomorphic types. Prognoses of patients with large tumors (a 20 cm) were significantly poorer than for patients with small tumors (< 20 cm). Labelling index of Ki-67 of recurrent tumors increased in two cases. The tumor size affected prognoses of patients with intra-abdominal or retroperitoneal liposarcoma. Combined resection was important to get a tumor-free margin.
Department of Second Surgery, School of Medicine, Kanazawa University, Japan. YIB03163@niftyserve.or.jp
T
T
Sato
G
G
Nishimura
A
A
Nonomura
K
K
Miwa
D000008:Abdominal Neoplasms / Q000473:pathology*; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008080:Liposarcoma / Q000378:metabolism / Q000401:mortality / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000473:pathology*; D011003:Ploidies; D011379:Prognosis; D012186:Retroperitoneal Neoplasms / Q000378:metabolism / Q000401:mortality / Q000473:pathology*; D016019:Survival Analysis