A case of premature sebaceous hyperplasia of the neck in a linear pattern

Premature sebaceous hyperplasia generally appears at puberty and it tends to become worse with age. The clinical appearance of premature sebaceous hyperplasia consists of scattered or sometimes confluent umbilicated papules or plaques with a selective location on the face, neck and upper thorax. The histological findings are the same as those of senile sebaceous hyperplasia. The findings reveal a group of mature sebaceous lobules and central sebaceous ducts. We report here on an unusual case of a 10-year old female patient with premature sebaceous hyperplasia. The lesions presented clinically as yellowish, umbilicated papules in a linear pattern on the right side of the neck.