Fig. 3From: Surgical resection of a retroperitoneal liposarcoma producing insulin-like growth factor II: a case reportMacroscopic and microscopic findings of the tumor. The excised specimen was a lobulated mass measuring 27 × 27 × 13 cm and 2700 g (a). The right kidney was surrounded by the tumor (b). Proliferation of atypical short spindle or oval cells resembling high grade undifferentiated sarcoma (c). The presence of a well differentiated liposarcoma component, showing mature-appearing adipose tissue and fibrous bands with irregular nuclei (d)Back to article page