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What is Piebaldism refers to: and explain in detail?
Piebaldism Rare AD disorder of melanocyte development characterized by congenital white forelock and multiple symmetrical hypopigmented or depigmented macules. Etiology: Absence of melanocytes in affected skin and hair follicles as a result of mutations of the KIT proto-oncogene. Symmetric involvement of central forehead, ventral trunk, and mid regions of upper and lower extremities. Idiopathic Guttate Hypomelanosis (IGH) is a benign and asymptomatic skin manifestation characterized as diffuse hypopigmented macules, or white spots.