MICHAEL E.MINGMDCARRIE ANN R.CUSACKMDSENAIT W.DYSONMDJACQUELINE M.JUNKINS-HOPKINSMDVINCENTLIUMDKARLA S.ROSENMANMD
A 14-year-old immunocompetent boy who had been receiving growth hormone therapy for 2 years presented with a slowly progressing papule on the gluteal fold that had appeared a few months earlier. Physical examination revealed a smooth, firm, skin-colored, exophytic papule, situated more than 2.5 cm from the anal verge, measuring 0.5 cm in diameter. The lesion was excised, and microscopic examination showed irregular deep-blue basophilic masses. A diagnosis of traumatic or idiopathic cutaneous calcinosis was made. A complete serum analysis demonstrated no abnormalities, and there was no evidence of autoimmune disease or metastatic calcification.
Patrizi A, Giacomini F, Bianchi F, Misciali C, Neri I. Recurrent Calcified Cutaneous Nodule of the Perianal Region—Quiz. Arch Dermatol. 2007;143(11):1441-1446. doi:10.1001/archderm.143.11.1441-c