title: IMAGING DIAGNOSIS: COMPUTED TOMOGRAPHIC FINDINGS IN A CASE OF ADENOSQUAMOUS CARCINOMA OF THE HEAD AND NECK IN A CAT.
abstract: A 15-year-old female spayed domestic long-haired cat was referred for trismus, hypersalivation, and bilateral ocular discharge. On examination, the cat showed pain on palpation of the left zygomatic arch, palpable crepitus of the frontal region, and limited retropulsion of both globes. A contrast-enhanced sinonasal computed tomographic study was performed, showing facial distortion and extensive osteolysis of the skull, extending beyond the confines of the sinonasal and paranasal cavities. Additionally, soft tissue and fluid accumulation were observed in the nasal cavities and paranasal sinuses. Postmortem biopsy samples acquired from the calvarium yielded a histologic diagnosis of sinonasal adenosquamous carcinoma, a rare and particularly aggressive neoplasm previously only reported in the esophagus of one cat.
authors.affiliation: Radiology Department of the Small Animal Specialist Hospital, North Ryde, 2113, Sydney, New South Wales, Australia.
authors.forename: Kathleen Ella
authors.initials: KE
authors.lastname: Chow
authors.affiliation: Department of Veterinary Pathology, Faculty of Veterinary Science, University of Sydney, Camperdown, Sydney, New South Wales, Australia.
authors.forename: Mark
authors.initials: M
authors.lastname: Krockenberger
authors.affiliation: Internal Medicine Department of the Small Animal Specialist Hospital, North Ryde, 2113, Sydney, New South Wales, Australia.
authors.forename: David
authors.initials: D
authors.lastname: Collins
mesh_terms: D000818:Animals; D018196:Carcinoma, Adenosquamous / Q000000981:diagnostic imaging / Q000662:veterinary*; D002371:Cat Diseases / Q000000981:diagnostic imaging*; D002415:Cats; D005260:Female; D009669:Nose Neoplasms / Q000000981:diagnostic imaging / Q000662:veterinary; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging / Q000473:pathology*; D012888:Skull Neoplasms / Q000000981:diagnostic imaging / Q000662:veterinary*; D014057:Tomography, X-Ray Computed / Q000662:veterinary; D016896:Treatment Outcome
keywords: adenosquamous carcinoma; cat; computed tomography; skull