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This study observed two cases of pigmented epithelioid melanocytoma suggesting potential differing origins: one from a hair follicle's outer root sheath and another from an intradermal nevus.

This case report describes a giant pigmented tumor of the scalp in a 47-year-old woman and suggests a possible dual origin involving neural crest differentiation.

This case report describes a 24-year-old woman with a rare giant cerebriform pigmented nevus on the scalp, which was identified as a giant congenital intradermal nevus based on clinical and pathological findings.

This case study describes a 21-year-old male diagnosed with Becker's nevus, characterized by hyperpigmented and hypertrichotic lesions that developed over several years.

This study reviewed existing literature and reported two cases of perinevoid alopecia, suggesting that melanocyte antigens may be involved in its development.