Today’s case is a 14-year-old male neutered Australian Cattle dog that was presented for evaluation of a stifle mass. Take a look and post your comment.
There is increased fat opacity between the gastrocnemius muscle and the digital flexor muscle, causing a mass effect. The fat opacity mass extends medial, lateral, and caudal to the stifle and tibia. The distal extent of the mass is difficult to appreciate. The stifle joint and popliteal lymph node appear normal.
A fat opacity mass is consistent with a lipoma, infiltrative lipoma, or liposarcoma.
The mass was surgically resected and lacked a defined capsule in one region. It was characterized as an infiltrative lipoma.