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Peer-reviewed veterinary case report

Dog with high calcium and urinary problems from retroperitoneal

By Bertazzolo, W et al.·Published in The Journal of small animal practice·2003·Pronto Soccorso Veterinario, Italy·View original on PubMed

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Original publication title: Hypercalcaemia associated with a retroperitoneal apocrine gland adenocarcinoma in a dog.

Species:
dog

Plain-English summary

A 7-year-old female golden retriever was brought in because she was drinking a lot of water and having trouble urinating. Tests showed she had a large mass in her abdomen causing urinary retention and high calcium levels, which can happen with certain cancers. A needle biopsy suggested the mass was a type of tumor related to the anal glands, but no tumors were found in the usual places. Sadly, after euthanasia, it was confirmed that the mass was an apocrine gland adenocarcinoma, which is a rare type of cancer.

People also search for: dog drinking a lot of water · dog urinary problems · golden retriever cancer symptoms · apocrine gland tumor in dogs · dog euthanasia process

Abstract

A seven-year-old, entire female golden retriever was presented with a history of polyuria/polydipsia and progressive dysuria. Clinical examination, radiography and ultrasonography demonstrated urinary retention due to a large soft tissue mass in the retroperitoneal space. Laboratory findings revealed paraneoplastic hypercalcaemia. Fine-needle aspiration cytology of the mass suggested an epithelial tumour, resembling an apocrine gland carcinoma of the anal sac. Following euthanasia and necropsy, the histopathological diagnosis of the retroperitoneal mass was apocrine gland adenocarcinoma. Despite ante- and postmortem examination, no perineal or anal sac tumour was found. The retroperitoneal tumour in this case could be a very large lymph node metastasis from an occult primary apocrine carcinoma of the anal sacs, or it could represent the first case of an ectopic apocrine gland carcinoma of the retroperitoneal space in a dog.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/12779174/