C09976944 / invoice 10000

Radiology results: NO osteosarcoma



Patient ID:	VILLREYNOL	Patient Name:	REYNOLDS_Villa
Sex:	F UNALTERED	Birthdate:	8/22/2014	Wt:	38kg
Hospital Name:	Gungahlin Veterinary Hospital
21 Crinigan Circle 
Gungahlin, ACT,  N/A 2912
02 6242 7276 
Doctor Name:	Dr Colleen Harvett	Date of Exam:	20260223
Reader:	Robert G. Nicoll BSc BVSc DACVR	Confirmation Date:	3/2/2026 6:23:57 AM UTC
HISTORY

Consult Type: FILMINTERP, SIG: DOB: 8/22/2014, Age: 11.53 Y, Sex: F UNALTERED, Wt: 38kg, Breed: Labrador Cross, Species: CANINE, Images: 10, Case Details: History of hip replacement for HD when young dog. Chronic history of osteoarthritis in elbows especially, Last few weeks marked lameness in right foreleg, partly resposive to pain releif. Stoic dog, but appeared more painfgul on shoulder jiont. Radiograpsh showed reduced cortical thickness of right proximal ulna, marked osteoarthritis of rright elbow, less so on left. Also spodylosis of thoracic vertebrae.
Suspect osteosarcoma?

Findings

Views: bilateral forelimbs - lateral (x2 overlapping of each) and caudocranial/craniocaudal/dorsopalmar (x3 of right, x2 of left); left lateral thorax
1. Bilateral shoulders and brachii - no significant abnormality evident.
2. Bilateral elbows and antebrachii - marked periarticular osteophytosis bilaterally, associated with the cranial, proximal and medial aspects of each elbow, including adjacent to irregular medial coronoid process bilaterally and with lucent defect in the subchondral bone of the distal humeral condyle medially in each limb; concurrent large enthesophytes associated with the epicondyles of each humerus at the origin of the flexor and extensor musculature of the distal limb; the right ulna has a well marginated smooth periosteal bone proliferation on the caudal margin of the proximal diaphysis at which level there is some lamination of the endosteal margin of the caudal cortex of the ulna.
3. Bilateral carpi and mani - enthesophytosis associated with multiple sites in the carpi and mani - craniodistomedial radius with concurrent mineralisation in the region of the medial collateral ligament of each antebrachiocarpal joint, the palmarodistal accessory carpal bone, and the origin and insertion of multiple medial and collateral ligaments of the 2nd - 5th metacarpophalangeal joints of both limbs.
4. Thorax - no significant intrathoracic abnormality evident - the tracheal lumen varies in diameter along its length; there is well defined bone proliferation on the ventral aspect of multiple vertebral endplates in the caudal thoracic and cranial lumbar spine; periarticular osteophytosis is evident associated with facet joints in the caudal thoracic and cranial lumbar spine.
4. Left lateral thorax -

Conclusion

Chronic elbow osteoarthrosis secondary to elbow dysplasia - fragmented coronoid process of the ulna and osteochondrosis of the distal humeral condyle- more severe in the right limb.
Concurrent bilateral epicondylar enthesophytosis at the origin of the flexor and extensor musculature of the distal limb (akin to golfer's elbow and tennis elbow in humans respectively) - chronic degenerative change.
Benign change in the proximal right ulna - suspect prior traumatic insult with modelling of the cortex.
Degenerative changes in both carpi and mani.
Spondylosis deformans and facet osteoathrosis in the spine - chronic degenerative change.
Possible tracheal instability - may be subclinical.
No evidence of osteoaggressive disease.
More recent exacerbation of right forelimb lameness may be due to recurrent injury to the joints and/or the origin of the musculature on the epicondyles, or the collateral ligaments in the joints of the distal limb, or exacerbation of supportive ligaments of the carpi from hyperextension injury.

Recommendations

Colleen, there is no evidence of an aggressive disease process, but management of all the degenerative changes present in the forelimbs will be an ongoing problem. The change in the caudal cortex of the proximal right ulna is indicative of prior traumatic insult with modelling subsequently - this meant that some of the excess mineral on the periosteal margin persisted, and some of the endosteal bone partly resorbed.

Read By:
Robert G. Nicoll BSc BVSc DACVR

Contact Information:
I can be reached by email at:rnicoll@bigpond.net.au

Thank you very much for this referral. Please let me know if I can be of further assistance.