Four year old Male castrated Shiba Inu with a history of acute onset of lameness with no history of trauma. Patient was non-weightbearing at exam.
Radiographs revealed a lytic and proliferative bone lesions at the head and neck of the left femur.
Ultrasound guided aspirates were taken through the cortex down to the compromised subcortical region using a 20-g catheter needle.
Aspirates taken from bone lesion via ultrasound guidance
Cytologic diagnosis consistent with Osteosarcoma