“…This clinical appearance can resemble viral warts, amelanotic melanoma, furuncles, intradermal nevi, basal cell carcinoma and kerathoacanthoma. 1,3,9 These lesions are rare in healthy individuals and may be linked to immune system disorders such as acquired immune deficiency syndrome, sarcoidosis, leukemias, corticosteroid and immunosuppressive medication, atopic dermatitis, and Wiskott-Aldrich syndrome. Atypical lesions of MC can develop frequently, grow to a large size, and spread widely to unusual body areas.…”