A child with nonscarring alopecia.

A 4-year-old girl presented in her usual state of good health except for two areas of alopecia (hair loss) involving the left parietal scalp (Figure 1). The child was taking no medications and had no significant past medical history. Her hairstyling did not include repetitive, tight braids (Figure 2). Figure 2. The patient's hairstyle did not feature repetitive, tight braids. Figure 1. Left temporoparietal scalp with diffuse alopecia and no associated scaling or pustules. On physical examination, her scalp had no scaling or pustules. She had no palpable occipital lymphadenopathy. The result of a Wood's light examination was negative. What are the diagnosis and prognosis, and what are the treatment options?