EN
The study aimed at the analysis of splenic pathologic lesions in mix-breed dogs of varied age and sex in the Lublin Province in 2005-2008. The research material comprised 33 spleen specimens collected both during surgery and post mortem. The material was fixed in 4% buffered formalin, dehydrated, and paraffin-embedded. The 4-µm-thick sections were stained with haematoxylin and eosin. The non-cancerous lesions were detected in young dogs under 2 years of age. Angiosarcoma proved to be the most common lesion and accounted for over 36% of total cases, followed by haemangioma recognised in above 27% of all cases. Nodular hyperplasia, hyperaemia, histiocytic sarcomas, haemangiopericytomas, lymphomas, and necrotic lesions were observed in notable minority of cases.