digestive system AE calcinosis AE 10006938 SJ, YH WEB: http://www.sclero.org/medical/symptoms/skin/calcinosis.html These most commonly occur on the hands, or near joints such as elbows or knees, although they may appear anywhere. Calcinosis may range from one very tiny deposit, to large (and often painful) clusters. a digestive system AE with an outcome of small white calcium lumps forming under the skin that may leak a chalky white fluid. These lumps are formed becuase of too much calcium in the diet.