Idiopathic calcinosis circumscripta is a rare and unusual disorder that seems to have a predilection for young, large breed dogs. There is an abnormal deposition of calcium in tissues usually overlying bony prominences. This disorder has been reported in humans, horses, cats, dogs, a cow, a buffalo and nonhuman primates.
Rewerts, J. M.; Kudej, R.; and Pearson, P. T.
"Idiopathic Calcinosis Circumscripta Causing Lameness in a Huskie,"
Iowa State University Veterinarian: Vol. 56
, Article 6.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol56/iss1/6