A 9-year-old boy presented with horny follicular papules on elbows, extensor surfaces of the proximal forearms and knees for last 3 years (Fig.1). Lesions were 1-2 mm in size and skin colored. On close inspection small gray-to-white plugs of keratin obstructing the mouths of the follicles were seen. Hair were seen piercing some of the lesions. There was some perifollicular erythema. Lesions were aggravated during winters and partially improved during summers. A diagnosis of Keratosis Pilaris was made on the basis of characteristic appearance and distribution of lesions.

Fig. 1. Photograph showing kerotosis pilaris on extensor surface of the proximal forearm and elbow.

Keratosis Pilaris (KP) is characterized by monomorphic keratotic follicular papules located predominantly on the extensor surfaces of the proximal limbs, most commonly of the posterolateral upper arms and anterior thighs. Less commonly lesions involve the face, buttock and trunk. The papules are not painful or significantly pruritic in most patients. Keratosis pilaris rubra is a less common variant, which presents with small erythematous papules. KP is self-limited and tends to improve with age in many patients.