Carcinoma of the submandibular salivary glands with multiple metastases in a cat.
A 9-year-old neutered male domestic shorthair cat was presented because of coughing, dysphagia, and prostration. Examination revealed firm bilateral anterocervical swellings extensively adhered to the surrounding tissues. Anisocoria with left-side miosis was also evident. X-ray and ultrasound examinations along with a fine-needle aspiration biopsy were performed. Slides were stained with May-Grünwald Giemsa, and a diagnosis of salivary gland carcinoma was made. At surgery, the tumor was found to involve both submandibular salivary glands as well as adjacent lymph nodes and surrounding tissues. The cat was euthanized and necropsy was performed. The majority of tissues and organs examined histologically, including mandibular and retropharyngeal lymph nodes, soft palate, laryngopharynx and lungs, contained neoplastic cells whose appearance was consistent with adenocarcinoma. Bilateral salivary adenocarcinoma has not previously been reported in cats, and extensive metastases are rare.
Mazzullo
Giuseppe
G
Department f Veterinary Public Health, Unit of Pathology, Faculty of Veterinary Medicine, University of Messina, Messina, Italy. gmazzull@unime.it
Sfacteria
Alessandra
A
Ianelli
Nicola
N
De Majo
Massimo
M
Pennisi
Maria Grazia
MG
D000818:Animals; D018267:Carcinoma, Acinar Cell / Q000473:pathology / Q000556:secondary / Q000662:veterinary*; D002371:Cat Diseases / Q000473:pathology*; D002415:Cats; D008297:Male; D013365:Submandibular Gland Neoplasms / Q000473:pathology / Q000662:veterinary*