Thymoma associated with exfoliative dermatitis in a cat.
A 7-year-old, castrated male, domestic shorthair cat presented with generalized exfoliative dermatitis, lethargy, anorexia and weight loss. Multiple skin scrapings taken at the time did not reveal any abnormalities. Skin histopathological examination was consistent with sebaceous adenitis or exfoliative dermatitis caused by an underlying thymoma (thymoma-associated feline exfoliative dermatitis). Thoracic radiographs revealed a cranial mediastinal mass, which was removed surgically. Histopathological examinations indicated that it was a thymoma. Within 90 days of surgery, the cutaneous signs had resolved, suggesting a causal relationship between the thymoma and the skin disease. Recurrence of thymoma was detected 24 months after surgery.
Department of Feline Medicine, Pet & Vet Clinic, Niterói, Rio de Janeiro, Brazil jacqueveterinaria@yahoo.com.br.
Jacqueline Vallim Jacobina
JV
Cavalcanti
Department of Feline Medicine, Pet & Vet Clinic, Niterói, Rio de Janeiro, Brazil.
Mariana Pereira
MP
Moura
Department of Surgery and Anesthesiology, Grande Rio University, Duque de Caxias, Brazil.
Fabio Oliveira
FO
Monteiro
D000818:Animals; D002371:Cat Diseases / Q000175:diagnosis* / Q000473:pathology; D002415:Cats; D003873:Dermatitis, Exfoliative / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D003937:Diagnosis, Differential; D008297:Male; D013945:Thymoma / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D013953:Thymus Neoplasms / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*