Clinical Case: A 5-year-old female child who consulted for pigmented patches involving the posterior surface of the trunk, buttocks, and upper one-third of both legs. There was a hairy surface, dark, black color, and a sharply bordered measuring 29×39. 5 cm (Figure 1). The physical examination of the child was normal. There was no history of other congenital anomalies or neurological deficits. No abnormality (bleeding or ulceration) was detected in the lesions. She was a product of non-consanguineous marriage. Both parents were healthy, and none of the close family members had similar skin lesions. . .