Nodular Dermatofibrosis and Renal Cystadenomas in a Golden Retriever

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Abstract
Abstract— The clinical and histologic features of a 2‐year‐old intact male golden retriever with nodular dermatofibrosis and renal cystadenomas are described. The skin lesions failed to respond to antibiotic and glucocorticoid therapy. Abdominal ultrasound revealed a wedge‐shaped area of hyperechoic mottled echogenicity at the cranial pole of the left kidney and a small right kidney. Euthanasia was performed thirty‐six months following initial presentation, owing to progressive enlargement of the dermal and subcutaneous nodules and gross deformity of the left hind limb secondary to fibrous tissue deposition and lymphatic obstruction. Necropsy confirmed the presence of bilateral renal cystic hyperplasia and multifocal renal cystadenomas. This is the first confirmed report of nodular dermatofibrosis and renal cystadenomas in a breed other than the German shepherd dog.

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