An Unusual Case of Metastatic @entity4797 in a XXXX .

@entity1 @entity1273 @entity5 @entity235 @entity1514 @entity158 @entity3 @entity4797 @entity17401
UNASSIGNED: An 8 yr old, reportedly castrated male Boston terrier presented with a history of generalized @entity17401 and intermittent shifting leg @entity1273 . Physical examination revealed a caudal abdominal mass and bilateral shoulder @entity158 . A complete blood count, serum biochemistry panel, and urinalysis were unremarkable. @entity1514 radiographs demonstrated bony proliferation and lysis of the third sternebra, an expansile lesion of the left tenth rib, and lucency in both proximal humeral metaphyses. Abdominal radiographs and ultrasound revealed a soft tissue mass within the caudoventral right abdomen. Ultrasonography also revealed an enlarged lymph node within the right retroperitoneal space. Exploratory laparotomy identified the mass as a retained testicle. A cryptorchidectomy, lymph node biopsy, and bilateral percutaneous core biopsies of the proximal humeri were performed. Histopathologic examination revealed @entity5 of the testicle with @entity3 to lymph node and bone. Adjuvant chemotherapy was recommended, but it was declined by the owner. All follow-up was lost. This case highlights a unique case for causative @entity17401 secondary to a novel site of @entity3 from @entity5 . @entity3 to bone has not been reported in @entity1 or @entity235 and represents a very unusual and aberrant variant of the normally relatively benign biological behavior of @entity4797 in the @entity235 .
