Blaszak B. author Walkowski M. author Ibbs M. author Jaskowski J.M. author text journal article 2009 This case report concerns a two year old female mongrel weighing about 25 kg which was admitted to an animal shelter. A grapefruit-sized mass was found in the animal's left ovary during a routinely performed ovariohysterectomy. On sectioning, the mass revealed cysts containing tufts of hair in creamy white sebaceous fluid. A histological examination revealed a mixture of tissues. The tumor was diagnosed as a mature teratoma (teratoma adultum). canine; germ; ovary tumor 10.17221/79/2009-VETMED https://vetmed.agriculturejournals.cz/artkey/vet-200908-0005.php https://vetmed.agriculturejournals.cz/artkey/vet-200908-0005.php continuing 54 8 379 381 2009 03758427 periodical academic journal