We report the case of a 27-year-old healthy male who presented with an area of curlier and thinner hair than the rest of his scalp localized on the right parietal area. He referred that just at that location, his hair had been different since childhood, curlier than the rest. Physical examination revealed a plaque with shorter and curlier hair on an area of 10 cm in diameter on the right parietal area of the scalp. A decreased density of hair was observed. The skin on the patch was apparently healthy. There were not exclamation mark hairs or miniaturization of hair follicles. A hair pull test was negative []. A skin biopsy showed a mild perifollicular lymphocytic infiltrate, telangiectatic capillaries in the superficial dermis and several terminal hair follicles emerged in the same dilated follicular infundibulum. Interestingly, an excessive amount of normal apocrine glands were found in the deep reticular dermis. Counting of hair follicles was normal [Figure –]. Based on clinical appearance and histopathologic studies, a diagnosis of WHN was established.
We present a 3-year-old healthy girl, whose mother was concerned about recent hair changes. The patient had no personal or family history of cutaneous diseases. At physical exam, the girl had a phototype II skin, normal teeth and nails. The back of the scalp revealed a well-circumscribed patch of kinky, curly light blonde hair. The rest of the physical exam was normal. Dermoscopy was not performed at the time.\nWoolly hair nevus was diagnosed. The parents were counseled about the benign and chronic nature of this lesion. Ophthalmologic evaluation was recommended, but the parents of the patient refused. No further studies were performed [Figures and ].