Small Animal Radiology and Ultrasound: A Diagnostic Atlas and Text

566 Small Animal Radiolo g y and Ultrasono graphy
Fig. 4-116 An 8-month-old male Greyhound with a left foreleg
lameness of 3 months duration. A radiograph of the shoulder (not
shown) revealed an osteochondritis dissecans lesion. A radiograph of
the right shoulder was obtained for comparison and to rule out the
possibility of bilateral disease. There is irregular mineralization of the
caudal aspect of the glenoid (arrow). This appears to be a separate
fragment; however, it is a normal pattern of ossification. Diagnosis:
Normal right shoulder.
Fig. 4-117 A 10-year-old male English Setter with a 3-month lameness
of the right forelimb. There are multiple calcified densities
within the right shoulder. These can be seen cranial to the scapular
spine and in the bicipital bursa area (arrows). Periarticular osteophytes
are present on the caudal distal margin of the humeral articular
surface and on the caudal margin of the scapular glenoid.
Diagnosis: Severe degenerative joint disease secondary to osteochondritis
dissecans.