In general, AGA patients tend to have elusive personalities and, although the individuals may go to the trichology centre accompanied they preferred to present alone to the desk or at least to the trichological examination room, except for subjects with depression who would often not agree to the physician removing hairs for the trichogram. Most subjects accepted the prescribed medical or surgical treatment, but several phoned before the second treatment session because the results of the first session were not as good as they had expected. The drop-out rate was higher in men (1 in 2), who were probably subjects showing aggressiveness.
The incidence of malignancy arising on SN was very low, indicating that prophylactic surgery of NS in children is not recommendable. Developmental defects should be investigated in order to evidence possible epidermal naevus syndrome associated with SN.
According to this study, BAA may progress to scalp AA in a significant number of patients (45.5% of the patients with a follow-up interval of at least 12 months). In the group of patients who developed scalp AA, 80% of them did it within the first 12 months, so follow-up of patients with BAA is highly encouraged.
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