Clinical manifestation

Yellowish-brown, greasy, verrucous papules, most common in the seborrheic areas, such as forehead, scalp, nasolabial folds, ears, chest and back; mucosal surfaces with white papules with central depression; heat, humidity, stress, sunlight, and UVB rays exacerbate the condition; lesions on palms, including punctate keratosis, palmar pits, and hemorrhagic macules; verrucous papules present on the backs of the hands; nail changes, including white and red longitudinal bands, longitudinal nail ridges, and splits

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