Scientific Works Series C. Veterinary Medicine

PRINT ISSN 1222-5304, ISSN-L: 2065-1295, ISSN CD: 2343-9394,ISSN ONLINE 2067-3663
 

EPIDEMIOLOGICAL AND MORPHOLOGICAL CHARACTERISTICS OF CUTANEOUS ROUND CELL TUMORS DIAGNOSED USING ASPIRATIVE CYTOLOGY IN DOGS

Published in Scientific Works. Series C. Veterinary Medicine, Vol. LXIII, Issue 1
Written by Georgeta DINESCU, Raluca Ioana RIZAC, Valentina PETRE, Claudia Mariana CONSTANTINESCU, Patricia Valentina DOBRE, Andrei TĂNASE

This paper’s purpose is to identify the epidemiologic and morphologic characteristics of cutaneous round cell tumors diagnosed using aspirative cytology in dogs. The study was conducted over a period of five years on a total of 225 dogs, aiming predisposition to gender, age and lesion location, as well as identifying the cytomorphologic characteristics of the lesions. Cytology was performed using FNA, smears being displayed by spreading, air dried and Romanowsky stained. Of the 225 studied cases of cutaneous round cell tumors, 110 (49%) were histiocytic tumors, 96 (43%) were diagnosed as mast cell tumors, 10 (4%) were plasma cell tumors, 2 (1%) cutaneous lymphomas and 7 (3%) were extragenital transmissible venereal tumors (cutaneous). The difference between sexes was not significant, 51% of the affected animals being males and 49% females. Most tumors were localized on the limbs (46%), followed by the trunk (38%) and head (20%).The relevance of the cytological examination was maximum for the mast cell tumors, differential diagnostic problems being faced between histiocytic tumors and plasma cell tumors or transmissible venereal tumors. Proper evaluation of cell populations, identifying the specific elements and morphological features of each cell type are essential, increasing the value of cytopathological diagnosis in veterinary medicine practice.

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