A 28-year-old male Naval aviator asked his doctor about a number of papules and pustules that slowly appeared on his occipital scalp over the past few months. The lesions were painful and sometimes bled when irritated. The pain of the lesions especially bothered him when he had to wear a helmet during flight operations. He recently noticed some raised scarring from healed pustules and slight hair loss in that area.
Is it sarcoidosis, folliculitis, acne keloidalis nuchae, or acne vulgaris?
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