Eruptive vellus hair cyst presenting as asymptomatic follicular papules on extremities
A 12-year-old female presented with multiple, asymptomatic skin lesions on flexor aspect of both upper extremities since 6 months. Lesions used to heal with postinflammatory hyperpigmentation. Physical examination revealed discrete, symmetrically distributed, 2-3 mm sized, dome-shaped hyperpigmented follicular papules, few of them with central crust, on flexor aspect of both upper extremities []. There was no family history of similar lesions. Oral and genital examination was normal. Differential diagnosis of eruptive vellus hair cyst, milia was considered.\nBiopsy of the papule showed a mid-dermal cyst lined by flattened squamous epithelium []. The cyst cavity contained abundant laminated keratinous material and varying numbers of transversely and obliquely cut vellus hair shafts []. Thus diagnosis of Eruptive vellus hair cyst was confirmed. We started the patient on topical retinoic acid cream (0.05%) daily at night with complete resolution of lesions, but few lesions recurred after stopping the treatment.