Disseminated Osteomyelitis Caused by Clostridium novyi in a Cat

The history, clinical signs, laboratory and radiological findings of a cat with polyostotic osteomyelitis are described. A disseminated periosteal reaction involving the femur, humerus and tibia bilaterally was evident on radiographs. The joints were not affected. Diagnosis of osteomyelitis was confirmed by bone marrow aspiration and bone biopsy. Clostridium novyi was cultured from the bone marrow.     

Unusual Bone Healing in a White-tailed Deer

Two sequential fractures in the left hind leg of a deer and their treatments are described. The first, a tibial fracture was treated using an intramedullary pin with full cerclage wires supported by a plaster cast. This fracture healed uneventfully. A subsequent second fracture involving the distal metatarsus was stabilized by external fixation. This fracture healed with the formation of a periosteal involucrumlike structure which encased the full length of the metatarsal bone. This involucrum was thought to be due to a sub-periosteal hematoma.     

Intramedullary Spinal Glioblastoma in a Cat, Presented as a Cauda equina Syndrome

A ten year old castrated male domestic short haired cat, was presented with clinical signs related to the cauda equina. The results of the neurological examination, diagnostic procedures, and clinical course are presented. At necropsy a glioblastoma of the caudal spinal cord was present. The difficulties in distinguishing between neoplasms arising in the cauda equina and the caudal spinal cord are discussed. A comparative discussion of the cauda equina syndrome is presented.