Synchron aortic body chemodectoma, bilateral testicle tumours and cholangiocellular cystadenoma in old dog. Oncological case report.Original Title Aortatest (glomus aorticum) chemodectoma, bilateralis heredaganat es cholangiocellularis cystadenoma egyuttes elofordulasa idos kutyaban. Onkologiai eset ismertetese.

摘要

Multiple, primary, non-metastatic tumours can either be observed in the animals in the same time or at different time points. The first example of such multiple tumours are called synchron, whereas the latter are called metachron tumours. In their publication the authors reported the presence of independently developed multiplex tumours in a 13 years old mixed breed male dog: (a) in the left testicle solitary Leydig-cell tumour; (b) in the right testicle mixed testicular tumour (diffuse seminoma and diffuse Sertoli-cell tumour); (c) in the liver multiplex cholangiocellular cystadenoma; and (d) benign aortic body chemodectoma around the aorta. These independent multiple primary tumours were not only found in different organs, but such multiple tumours were present in single organs, such as the testicle, where the right one was affected by a mixed tumour, and a multiple Leydig-cell tumour, whereas in the liver multiplex cholangiomas was present. In the first case different, in the second case same kind (histological type) of tumours were observed in these organs. To the authors' knowledge no common occurrence of such tumours were reported in the Hungarian and international veterinary literature. During the clinical examinations, the diagnostic laparatomy of the moribund animal revealed marked enlargement of the prostatic gland, causing functional stenosis of the colon that was perforated by a porcine bone fragment, leading to diffuse peritonitis. Before end of the surgery the animal died on the operating table. The tumours found during the autopsy are summarized in a table, and illustrated by pictures.