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Main clinical manifestations of the three patients. Depigmented patches were involved in middle frontal, chest, abdomen, limbs of the patient 1 (A), 2 (B) and 3 (C). Normal pigment islands were scattered on trunk, and extremities. Café-au-lait macules were noticed on the right lower limb of Patient 1 and the front chest, left armpit, right lower limb of Patient 2.
