Suspected Radiation-Induced Osteosarcoma in a Domestic Shorthair Cat

Figure 1

Abdominal computed tomographic images of the cat in bone window dorsal plane post-contrast (a), and sagittal plane (b). A mass can be observed extending into the pelvic cavity with displacement and compression of the rectum to the right (black arrow). Moth-eaten bone less and thin irregular periosteal new bone formation of left ischium is apparent (white arrow). Also note the presence of a chronic left ischium fracture (black arrowhead).

1(a)

1(b)