Paraneoplastic exfoliative erythroderma in a cat with thymoma

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Pubblicato: Nov 10, 2017
DOI: https://doi.org/10.12681/jhvms.14854
D. KASABALIS (Δ. ΚΑΣΑΜΠΑΛΗΣ)
Clinic of Medicine, Faculty of Veterinary Medicine, University of Thessaly
M. E. MYLONAKIS (Μ.Ε. ΜΥΛΩΝΑΚΗΣ)
Companion Animal Clinic, Faculty of Veterinary Medicine, Arìstotle University of Thessaloniki
M. N. PATSIKAS (Μ.Ν. ΠΑΤΣΙΚΑΣ)
Companion Animal Clinic, Faculty of Veterinary Medicine, Arìstotle University of Thessaloniki
T. PETANIDES (Θ. ΠΕΤΑΝΙΔΗΣ)
Clinic of Medicine, Faculty of Veterinary Medicine, University of Thessaly
A. F. KOUTINAS (Α.Φ. ΚΟΥΤΙΝΑΣ)
Companion Animal Clinic, Faculty of Veterinary Medicine, Arìstotle University of Thessaloniki
Abstract

A 14-year-old domestic shorthair cat was admitted with a 2-month history of excessive body weight loss and generalized exfoliative dermatitis with erythroderma. Radiographic and ultrasonographic examination revealed a cranioventral cavitary mass within the anterior mediastinum. An ultrasound-guided fine needle aspiration cytology from the mass revealed numerous small mature lymphocytes intermingled with much fewer inflammatory mast cells. These findings, along with a cellpoor interface and mixed cell dermatitis demonstrated on skin histopathology, made the diagnosis of paraneoplastic exfoliative dermatitis straightforward. This uncommon case illustrates the relative value of keratosebborheic skin disease as a useful indicator of an internal malignancy in the cat.

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