Pathological Characteristics of Neoplastic Changes in Croatian Autochthonous Dog Breeds

Ovim radom smo željeli istražiti pojavnost i karakteristike neoplastičnih promjena, u hrvatskih autohtonih pasmina pasa, kako bi se započela gradnja temelja za daljnja istraživanja ove važne nacionalne i kulturne baštine Republike Hrvatske. Nastojalo se prikupiti što više podataka o različitim tumorima autohtonih pasmina pasa iz uzoraka tkiva i lešina koji su pristigli na Zavod za veterinarsku patologiju, Veterinarskog fakulteta Sveučilišta u Zagrebu, u razdoblju od 2009. do 2019. godine. Gledajući svaku autohtonu pasminu posebno, odredili smo učestalost pojave tumora, spol pasa s neoplastičnom promjenom i njihovu prosječnu starost, najčešće lokalizacije na tijelu u/na kojima su se tumori razvili, najčešće tipove tih tumora te biološko ponašanje svakog. Analizom podataka ustanovljeno je da je kod svih pasmina bio podjednak broj muških i ženskih pasa te da su svi bili prosječno starije životne dobi. Također, dominirali su tumori malignog biološkog ponašanja te se najviše tumora pojavilo na koži, mliječnoj žlijezdi i u hemolimfatičnom sustavu. Budući da ne postoje literaturni podatci o neoplastičnim promjenama hrvatskih autohtonih pasmina pasa, sve dobivene i usporedive rezultate smo usporedili s dostupnim podatcima o neoplastičnim promjenama opće populacije pasa te smo gledali njihovu podudarnost. U svrhu dobivanja točnijih i relevantnijih saznanja o tumorima, kao najučestalijim patološkim promjenama, potrebno je provesti daljnja istraživanja na većem broju pasa autohtonih pasmina čime bi se pridonijelo očuvanju ove hrvatske nacionalne i kulturne baštine.With this paper we wanted to investigate the occurrence and characteristics of neoplastic changes in Croatian indigenous dog breeds in order to begin building the foundation for further research of this important national and cultural heritage of the Republic of Croatia. Efforts were made to collect as much data as possible on various tumors of indigenous dog breeds from tissue and carcass samples that arrived at the Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Zagreb, in the period from 2009 to 2019. Looking at each indigenous breed separately, we determined the frequency of tumors, the sex of dogs with neoplastic changes and their average age, the most common localizations where tumors developed, the most common types of these tumors and the biological behavior of each. The analysis of data showed that all breeds had an equal number of male and female dogs and that they were all on average older in age. Also, tumors of malignant biological behavior dominated, likewise most tumors appeared on the skin, mammary gland and hemolymphatic system. Since there is no literature data on neoplastic changes in Croatian indigenous dog breeds, we compared all obtained and comparable results with available data on neoplastic changes in the general dog population and examined their coincidence. In order to obtain more accurate and relevant knowledge about tumors, as the most common pathological changes, it is necessary to conduct further research on a larger number of dogs of indigenous breeds, which would contribute to the preservation of this Croatian national and cultural heritage