Title:Juvenilis, aorta típusú spirocercosis esete kutyában Klinikopatológiai esettanulmány
SUMMARY Background: Spirocerca lupi is a spirurid nematode of carnivores, particularly Canidae, of worldwide distribution. Objectives: The aim of the present clinicopathological study was to describe pathological, and histopathological characteristics of the aortic type spirocercosis in a young dog, which died suddenly during the clinical examination, without correct clinical diagnosis. Materials and Methods: Aortic wall and lung samples were separated and conserved in buffered, 8% formalin for 24 hours at room temperature, embedded in paraffin wax and further processed for sectioning (3–4 µm). During the histopathological investigation hematoxylin and eosin, Azan- and Perls stainings, and inflammatory-, necrosis-, haemorrhage-, collagen fibre-, fibroblast cell-scoring systems were used. Results and Discussion: In a routine post-mortem examination, paler than normal visible mucosal membranes (hallmark of the acute posthaemorrhagic shock), large quantity of blood (~250 ml) were found in the thoracic cavity, and in the periaortal, furthermore precardial mediastinal tissues. 14–15 non-neoplastic, Spirocerca lupi-induced inflammatory nodules, and 5 mm in length transmural rupture were detected in the wall of the aorta. This report details the possible cause of the sudden death in a dogs, due to fatal aortic rupture as a result of Spirocerca lupi infection.