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Veterinary Radiology

Teaching and learning about veterinary diagnostic imaging.

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10 year old Labrador Retriever

October 22, 2015 By Allison Zwingenberger

Today’s case is a 10-year-old male neutered Labrador Retriever with swelling under right mandible and ptyalism from the right side. How would you describe the lesion?

R LAT Skull
OBL Skull
OBL Skull
DV Skull
DV Skull

Show findings...

Findings

There is an expansile and lytic mass arising from the right mandible. There is mild soft tissue swelling associated with the mass. There is peripheral new bone with an irregular appearance. The left mandible and dental structures appear normal.

Show differential diagnosis…

Differential Diagnosis

Differential diagnoses for the mandibular mass include osteosarcoma, chondrosarcoma, fibrosarcoma. Thoracic radiographs should be performed to evaluate for metastasis. CT may be helpful for further assessment and surgical planning.

Show diagnosis…

Diagnosis

A fine needle aspirate of the mass revealed sarcoma (DDx fibrosarcoma, fibrous subtype of osteosarcoma, hemangiosarcoma).

Filed Under: Canine, Case of the Day, Musculoskeletal, Radiographs

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