title: Rib metastases from a non-tonsillar squamous cell carcinoma in a dog.
abstract: Metastatic spread to the ribs in a 15-year-old, male, neutered, Irish setter is reported occurring secondary to an oral squamous cell carcinoma (SCC). The dog presented with a history of a rapidly growing SCC of the right upper incisive region, which was confirmed by histopathology as a SCC. Thoracic radiographs showed bony lesions associated with the body of the right third rib, and the fifth and seventh costal cartilages. A rostral partial maxillectomy was performed as palliative treatment for the oral mass and a core biopsy of the lesion on the third rib was performed. The rib lesion was identified histopathologically as a metastatic SCC. A review of the literature of oropharyngeal SCC and the metastatic potential of non-tonsillar SCC is presented, in particular metastatic bone disease. This case report suggests possible implications of metastatic bone disease for treatment and prognosis for future cases of non-tonsillar SCC.
authors.affiliation: Dick White Referrals, Station Farm, London Road, Newmarket CB8 0UH.
authors.forename: B S
authors.initials: BS
authors.lastname: Clarke
authors.forename: P A
authors.initials: PA
authors.lastname: Mannion
authors.forename: R A S
authors.initials: RA
authors.lastname: White
mesh_terms: D000818:Animals; D001859:Bone Neoplasms / Q000556:secondary / Q000601:surgery / Q000662:veterinary*; D002294:Carcinoma, Squamous Cell / Q000556:secondary / Q000601:surgery / Q000662:veterinary*; D004283:Dog Diseases / Q000473:pathology* / Q000601:surgery; D004285:Dogs; D008297:Male; D009062:Mouth Neoplasms / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D010166:Palliative Care