OVERVIEW OF THE EPIDEMIOLOGICAL AND MORPHOLOGICAL ASPECTS OF THE CUTANEOUS MALIGNANT EPITHELIAL TUMORS IN DOG

Published in Scientific Works. C Series. Veterinary Medicine, Vol. LVIII ISSUE 4
Written by Georgeta Dinescu, Elvira Condruţ, Virginia Şerbănică, A. Feghiu

The malignant epithelial tumors (MET) are frequent and very important in the pathology of the dog’s skin. The aim of the present study was to evaluate these tumors, both epidemiologically and morphologically. During 2007-2011, a total of 3643 dogs have been specifically examined; 224 of them had MET. The specimens were obtained by fine needle aspiration (60%) and surgical biopsy (40%). During these five years, a total of 3643 dogs have been specifically examined and 1262 (34.5%) of them had cutaneous lesions, and 224 (17.7%) dogs were diagnosed with MET. The incidence of the cutaneous MET increased with a constant rate, from 12% in 2007, to 23% in 2011. No predilection of breed was observed, but the majority of the dogs were medium and large breeds. 57% were males and 43% were females. The median age of the affected dogs was 9 years. The neoplasms were located on the trunk (34%), head (32.5%), limbs (30.5), neck (3%). The attempt to correlate the incidence of the tumors with the season concluded that the majority of the diagnoses were established during spring (30.5%) with the fewest, during summer (12%). Cytological examination was the single method for investigating 47% of the surgical samples. Sole histological examination was used for 17% of the surgical samples and 36% of the cases were diagnosed by both methods of investigation. The most frequent MET were squamous cells carcinoma, (31%), tumors with adnexal differentiation - malignant trichoepithelioma, malignant pilomatricoma (24%) and basal cell carcinoma (21.5%), but rarely were diagnosed: sebaceous carcinoma, apocrine carcinoma, and eccrine carcinoma. A constant increase of the incidence of cutaneous MET was observed in dog and the importance of cytological and histological examination was also demonstrated.

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Dinescu G., Condruţ E,, Şerbănică V., Feghiu A. 2012, OVERVIEW OF THE EPIDEMIOLOGICAL AND MORPHOLOGICAL ASPECTS OF THE CUTANEOUS MALIGNANT EPITHELIAL TUMORS IN DOG. Scientific Works. C Series. Veterinary Medicine, Vol. LVIII ISSUE 4, PRINT ISSN 1222-5304, 108-119.


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