Canine hypertrophic osteoarthropathy associated with a malignant Sertoli cell tumour

Abstract

A 15‐year‐old crossbred dog was presented with a severe cough of acute onset and an enlarged right testis. Symptomatic treatment for presumed ‘kennel cough’ failed to produce any improvement and at re‐examination the dog had developed a swollen right forelimb. Radiographic examination suggested a diagnosis of hypertrophic pulmonary osteoarthropathy (Marie's disease) associated with pulmonary metastases from a testicular tumour. The dog was re‐presented five days later with acute‐onset severe vomiting and the owner elected for euthanasia. Necropsy was performed and histopathological assessment confirmed the presence of a Sertoli cell tumour in the right testis with multiple pulmonary and renal metastases. Hypertrophic pulmonary osteoarthropathy is a rare complication of metastatic canine Sertoli cell tumour. The authors know of no previously reported cases.