Korean Journal of Veterinary Research  2015;55(1):65-69

doi:10.14405/kjvr.2015.55.1.65

Primary renal fibrosarcoma with local invasion into the mesenteric membrane of a mongrel dog.

Hyun Ah PARK 1 ; Chang Woo JEONG ; Gui Soo KIM ; Han Jun KIM ; Sunhee DO ; Hee Myung PARK

Affiliations

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Keywords

dog; renal fibrosarcoma; renal sarcoma; renal tumor

Country

Republic of Korea

Language

English

Abstract

A 14-year-old, 7.4 kg, neutered male mongrel dog presented with vomiting, anorexia, and hematuria starting 3 days prior to admission. Serum biochemical profiles indicated severe azotemia. Computed tomography revealed loss of normal left kidney structure. The organ was 1.5 to 2 times larger than the right kidney with mixed attenuation. Histopathologic examination was performed after nephrectomy. The renal mass and mesenteric membrane were positive for vimentin and stained blue with Masson's trichrome. In conclusion, this was a rare occurrence of primary renal fibrosarcoma, most likely originated from the renal capsule, with local invasion into the mesenteric membrane.