Fujiyoshi Y, Nishimura H, Irie K, Morimatsu M
Second Department of Pathology, Kurume University, School of Medicine, Japan.
Pathol Int. 1994 Oct-Nov;44(10-11):803-7. doi: 10.1111/j.1440-1827.1994.tb02930.x.
A rare case is reported of malignant mesenchymoma of a retroperitoneal lesion involving the kidney and composed of leiomyosarcoma and liposarcoma. The tumor, measuring 13 x 12 x 11 cm and weighing 1910 g, arising from the soft tissue of the retroperitoneum or renal capsule, was completely removed surgically. Thirteen months after surgical operation, multiple metastasis was observed. Immunohistochemical and electron microscopical examination showed two different mesenchymal elements. Magnetic resonance imaging findings were compatible with the pathological findings. This case appears to be the second in the world literature.
报告了一例罕见的腹膜后病变恶性间叶瘤，累及肾脏，由平滑肌肉瘤和脂肪肉瘤组成。肿瘤大小为13×12×11cm，重1910g，起源于腹膜后软组织或肾包膜，经手术完全切除。手术后13个月，观察到多处转移。免疫组织化学和电子显微镜检查显示两种不同的间叶成分。磁共振成像结果与病理结果相符。该病例似乎是世界文献报道中的第二例。
