Does any clinical studies in canine proves that an increase in serum calcium level can be correlated with the occurrence of Mammary tumor in canine patients.
I want to also know whether increased serum calcium level is seen in any other tumor conditions in canines...?
Paraneoplastic syndromes are complexes symptom that occur at a distinct site from the primary tumor or its metastasis by the production of hormone by the tissue in which the tumor appears. Paraneoplastic hypercalcemia is associated with an abnormal elevation of serum calcium levels and the mainly tumor related to this syndrome in canine is lymphoma, anal sac apocrine gland adenocarcinoma and multiple myeloma. In mammary tumors, the most frequent tumor that affect female dogs, this syndrome was also observed. The aims of this study were to evaluate serum calcium levels in female dogs with malignant mammary tumors and correlate calcium levels with clinicopathological parameters. Materials, Methods & Results: It was evaluated fifty-one female dogs with mammary carcinomas (simple carcinomas and carcinoma in mixed tumors) for serum calcium levels using colorimetric test. Clinical-histopathological data as spray status, pseudopregnancy, tumor size, ulceration, clinical staging, histopathological type and tumor grade were also evaluated in association with serum calcium levels. All dogs were treated with unilateral mastectomy. It was observed that 18 animals (35%) had calcium serum levels increased (>11.5 mg/dL) and 56% (10/18 cases) of these animals had serum calcium levels higher than 12 mg/dL. All dogs with hypercalcemia were asymptomatic, including two female dogs that presented the highest levels (13.43 mg/dL and 14.28 mg/dL). Hypercalcemia of malignancy was related to mammary carcinomas after the exclusion of other causes of hypercalcemia through laboratory tests (complete blood count and serum biochemistry) and abdominal ultrasound. No correlation was verified between the corrected serum calcium values with clinical and histopathological parameters evaluated.
Acta Scientiae Veterinariae, 2016. 44: 1386
Paraneoplastic Hypercalcemia Secondary to Canine Mammary Tumors
Talita Mariana Morata Raposo-Ferreira1 , Giovanna Rossi Varallo1 , Sabryna Gouveia Calazans2 , Paulo Cesar Jark1 , Rosana da Cruz Lino Salvador1 , Mirela Tinucci-Costa1 , Andrigo Barboza De Nardi1 , Geovanni Dantas Cassali3 & Renée Laufer-Amorim4
http://www.ufrgs.br/actavet/44/PUB%201386.pdf
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