A 43-year-old female was referred to our hospital from a local doctor. Her chief complaints were weight gain and abdominal fullness. Computed tomography and magnetic resonance imaging showed a huge tumor in the right retroperitoneal space, which adhered to the right kidney. It was resected with concomitant resection of the right kidney. It measured 30 × 15 cm and weighed 3.0 kg. Histological examination revealed well differentiated liposarcoma with metaplastic bone formation. She has survived 22 months since the operation with no evidence of recurrence. A retoroperitoneal liposarcoma with metaplastic bone formation is rare. Twenty cases have been reported in Japan including our case.
CITATION STYLE
Arakaki, R., Yoshikawa, T., Yamaha, H., Kamoto, T., & Mikami, Y. (2010). A case of retroperitoneal well-differentiated liposarcoma with metaplastic bone formation. Acta Urologica Japonica, 56(12), 697–700.
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