Granulosa cell tumour in a llama (Lama glama). Issue 3 (26th November 2022)

• Record Type: Journal Article
• Authors: Carrasco, Rodrigo A.; Hutt, Kylie D.; McKenzie, Christina M.; Adams, Gregg P.
• Is Part Of: Reproduction in domestic animals. Volume 58:Issue 3(2023)
• Page Start: 459
• Page End: 464
• Publication Date: 2022-11-26
• Subjects: granulosa cell tumour -- llama -- ovary; Animal breeding -- Periodicals; Veterinary pathology -- Periodicals; Livestock -- Breeding -- Periodicals; 636.082
• DOI: 10.1111/rda.14296
• Languages: English
• ISSNs: 0936-6768

Abstract

Abstract: Hormonally active tumours are characterized by production and secretion of hormones, irrespective of endogenous feedback mechanisms. An adult llama had exuberant oestrous behaviour, infertility, elevated concentrations of oestradiol and a large ovarian mass. Necropsy revealed the presence of two large abdominal masses, one effacing the right ovary and one in the mesocolon. Considering the clinical and histopathological findings, we conclude that the llama was affected by a granulosa cell tumour. The case suggests that granulosa cell tumours in camelids are hormonally active, and the clinical presentation resembles that of other large animal species. To our knowledge, this is the first case report of an oestrogen‐producing, metastatic granulosa cell tumour in a llama.