Calcinosis circumscripta in the foot pad of a dog: Case report
DOI:
https://doi.org/10.31533/pubvet.v17n6e1399Keywords:
metatarsal pad, mineralization, subcutaneous noduleAbstract
Circumscribed calcinosis occurs due to the deposition of calcium salts in the tissues and can be classified in four ways according to the pathogenesis: metastatic, dystrophic, idiopathic and iatrogenic. In its metastatic form, mineralization is usually associated with hypercalcemia and hyperphosphatemia, disorders seen in patients with chronic nephropathy. Dystrophic calcinosis occurs due to calcium deposition in places where tissue damage has occurred. However, serum values of calcium and phosphorus are normal. Iatrogenic calcinosis also occurs on a site where tissue damage has occurred, which a previous treatment or surgical procedure may cause, and therefore can also be classified as dystrophic calcification. Finally, idiopathic calcinosis occurs when the causal factors mentioned above are not detected. Dystrophic and idiopathic calcinosis occur more frequently in animals compared to metastatic calcinosis. This lesion is commonly found in large breeds and young dogs under two years old. The patient here described had no evidence of pre-existing diseases or trauma, which could lead to dystrophic calcification, and there were no signs of metabolic disease, which could lead to metastatic calcification. Therefore, the present study reports on the case of a calcinosis circumscribed as idiopathic in a dog's footpad.
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