A 24-year-old male presents with an asymptomatic hyperpigmented patch over the right upper chest 4 years ago, which increased in thickness since then and developed thick hair over the same with time. Diagnosis is:
Ans. c. Becker's nevusBecker's NevusAlso known as Pigmented hairy epidermal nevusType of Nevus: EpidermalMore common in males after pubertyStarts at adolescence as a hyperpigmented macule with irregular bordersWith time, thickens with a corrugated surface and develops thick hair growth over itOccasionally acneiform lesions may also be presentCan be single or multipleSaid to be due to increased androgen receptors over the siteHPE: Epidermal hyperplasia with Increased number of melanosomes and keratinocytesTreated by Q switched Nd: YAG or Er: YAG laserBecker Nevus SyndromeEpidermal nevus with hyperpigmentation and hair growth, along with hamartomatous augmentation of smooth muscle fibers, ipsilateral hypoplasia of mammary glandOther skeletal abnormalities are also present
Spitz nevus
Hypermelanosis of Ito
Becker's nevus
Congenital melanocytic nevus
Skin Lesions And Disorders Of Pigmentation