Neonatal Occipito-Linear and Temporo-Fronto-Parietal Alopecia: Can Non-Marginal and Marginal Forms of Transient Neonatal Hair Loss Be Found Together?

The case report described a one-year-old boy with two different patterns of hair loss present since birth: a linear area with reduced hair density over the occipital region extending to the temporo-parietal regions, and bilateral triangular bald areas over the fronto-temporo-parietal regions. The child had no relevant birth history or family history of hair loss. Upon examination, the hair loss did not show signs of inflammation, trichotillomania, traction alopecia, tinea capitis, or alopecia areata. The report suggested that the observed hair loss might be a combined manifestation of both non-marginal and marginal forms of transient neonatal hair loss (TNHL) or neonatal occipital alopecia (NOA). It highlighted the need to consider NOA or TNHL in the differential diagnosis of non-scarring regional scalp alopecia in neonates to prevent unnecessary interventions.