In this study, cytological and histological findings of canine hepatoid gland tumors were evaluated for accuracy of cytologic diagnosis. Thirty two samples from dogs of different breed, sex and age were used in the study. Cytologic speciments were prepared by Fine Needle Aspiration Cytology (FNAC) and stained with May-Grünwald Giemsa (MGG). On the other hand, histopathologic tissue samples were obtained surgically. Samples were fixed in 10% neutral formalin solution and embedded in paraffin by routine procedures and stained with hematoxylin-eosin (H&E). In 84.37% of the samples taken from the 32 dogs included in the study, matching cytological and histopathological diagnoses were made, while 5 of the cases were misdiagnosed. Based on cytological examination, from 27 of the samples taken, 18 (66,7%) were diagnosed as Suspect adenoma, 6 (22,2%) as Suspect carcinoma and 3 (11,1%) as Suspect epithelioma. Based on histopathological examination, of the total 32 cases, 22 (68,7%) were diagnosed as Hepatoid gland adenoma (HGA), 7 (21,9%) as Hepatoid gland carcinoma (HGC) and 3 (9,4%) as Hepatoid gland epithelioma (HGE). These results suggest that the FNAC technique and cytological examination could be of use in the early diagnosis of canine hepatoid gland tumors.

Summary:In the case, diffuse malignant seminoma was pathologically described in both testicles of 6 years old, maleTerrier. Testicles had firmness consistency and multilobullary appearence. On cut sections, a wide brownish-black colored and haemorragic area were restricted by gray colored necrotic areas. Microscopically, multiple masses in different size which composed of polihedral shaped neoplastic cells that had vesicular nuclei and basophilic cytoplasm.

Summary:In the case, leiomyosarcoma is described pathomorphologically in conjuctiva of a 5 years old male dog.Macroscopically, the mass were weight of 14 g, 4x4x3 cm in diameter, grayish-white and firm consistency. On cut section, there were generally grayish white color but included haemorrhagic foci in some areas. Histologically, anaplastic muscle cells, were seen ovoid or spindle shape, had architecture of bundles in different way or whorles. The cells were differentiated by staining red in Masson's trichrome method. In addition, haemorrhagic areas were get along with these cells.