Peer-reviewed veterinary case report
Cat with locked jaw and swelling - what is multilobular
By Vedrine, Bertrand·Published in Topics in companion animal medicine·2023·Surgical department, France·View original on PubMed →
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Original publication title: Multilobular Osteochondrosarcoma of the Vertical Ramus of the Mandible in a Cat.
- Species:
- cat
Plain-English summary
A 7-year-old male domestic shorthair cat was brought to the vet with a locked jaw and swelling on the side of his head. A CT scan revealed a calcified tumor in his jawbone, which was diagnosed as a multilobular osteochondrosarcoma, a rare type of bone cancer. The vet performed surgery to remove the affected bone and surrounding tissue, and afterward, the cat was able to open his mouth normally. He recovered well from the surgery, and further tests confirmed the tumor type.
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Abstract
A 7-year-old castrated male domestic shorthair cat presented with locked jaw syndrome and firm swelling in the right temporal region of the skull. A computed tomography (CT) scan showed a heavily calcified mass of the right coronoid process of the mandible with a popcorn appearance, consistent with a multilobular osteochondrosarcoma. The zygomatic arch was displaced laterally and ventrally due to the mass effect. The temporomandibular joint was not involved. Surgical treatment was performed and consisted of the removal of the zygomatic arch and the vertical ramus of the mandible. It was possible to open the mouth normally immediately after surgery. Recovery was uneventful. Histological examination of the mass confirmed multilobular osteochondrosarcoma. This type of tumor is rarely encountered in dogs, and a literature search reveals only 2 cases in cats: 1 arising from the skull and 1 from thoracic wall. This case report documents the first description of a multilobular osteochondrosarcoma of the mandible in a cat.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/36990179/