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Figure 2 (Case 2): (a) Photograph of face showing multiple pitted scars (0.5 mm to 4 mm) located over nose, both cheeks and perioral area (b) Back and nape of neck shows pitted scars, hyperpigmented comedo-like papules and tiny hyperpigmented macules. In addition there are few scattered hyperpigmented nodular lesions (c) Skin biopsy from comedo-like papule on face reveals follicular infundibular dilatation fi lled with laminated keratin, with fi liform and branching rete pegs which are pigmented at their tips, along with numerous epithelial horn cysts. The adjacent non-follicular epidermis is normal (H and E, ×100)

Figure 2 (Case 2): (a) Photograph of face showing multiple pitted scars (0.5 mm to 4 mm) located over nose, both cheeks and perioral area (b) Back and nape of neck shows pitted scars, hyperpigmented comedo-like papules and tiny hyperpigmented macules. In addition there are few scattered hyperpigmented nodular lesions (c) Skin biopsy from comedo-like papule on face reveals follicular infundibular dilatation fi lled with laminated keratin, with fi liform and branching rete pegs which are pigmented at their tips, along with numerous epithelial horn cysts. The adjacent non-follicular epidermis is normal (H and E, ×100)