Peer-reviewed veterinary case report
Dog with slow-growing tumor on cheekbone bone treated by surgery
By L. Leonardi et al.·Published in Open Veterinary Journal·2014·Dipartimento di Scienze Biopatologiche e Igiene delle Produzioni Animali e Alimentari, Università degli Studi di Perugia, Italy, LY
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Original publication title: Multilobular tumor of the zygomatic bone in a dog
- Species:
- dog
Plain-English summary
A 10-year-old mixed breed dog had a noticeable growth on the left side of its face that had been getting bigger over the past four months. After taking X-rays, the vet found a complex mass in the dog's zygomatic bone, which is part of the skull. The dog underwent surgery to remove the tumor, which was made up of multiple nodules. The diagnosis was confirmed through examination of the tumor tissue. Following the surgery, the dog was treated and is expected to recover well.
People also search for: dog facial tumor · zygomatic bone tumor in dogs · dog surgery for mass · mixed breed dog tumor treatment
Abstract
Multilobular tumor of bone (MTB) (also known as Multilobular Osteochondrosarcoma) is an uncommon bone tumor frequently located on the skull of dogs, rarely on the ribs or pelvis. These neoplasms are slow growing, locally invasive, and have the potential to compress and invade the brain. A 10-year-old mixed breed dog was presented with a history of approximately 4 months of progressive growth of a left zygomatic mass. Radiographic investigation revealed a finely granular or stippled non homogeneous radiopaque mass involving the zygomatic arch. After surgery, grossly the neoplasm consisted of multiple, variably sized, grayish-white to yellow nodules separated by collagenous septa of different thickness. Histologically, the tumor was characterized by the presence of multiple lobules containing osteoid and cartilage, separated by a net of fibrous septae. This neoplastic pattern was consistent with a typical multilobular tumor of bone and based on clinical, radiographical, gross and light microscopic findings the definitive diagnosis was made. While reviewing veterinary literature only few cases of MTB were found in dogs.
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