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Hair casts, also known as pseudonits, represent remnants of the inner root sheath, and often occur in great numbers and may mimic nits in the scalp. [ 1 ] : 764 Signs and symptoms
Trichorrhexis nodosa is a defect in the hair shaft characterized by thickening or weak points (nodes) that cause the hair to break off easily. [ 2 ] [ 3 ] : 636 This group of conditions contributes to the appearance of hair loss , lack of growth, and damaged-looking hair.
Biopsies are not necessary for the diagnosis of loose anagen hair syndrome. A biopsy will display non-inflammatory, non-scarring alopecia. [2] The texture of the hair varies with some reports stating that patients with loose anagen syndrome have hairs that are rough, brittle and sticky. [13] This may be the result of the deformations of the ...
"Bamboo hair" is a rare autosomal recessive genodermatosis characterized by congenital ichthyosiform erythroderma, trichorrhexis invaginata, and atopic diathesis with failure to thrive. Chronic skin inflammation results in scaling and exfoliation , predisposing these patients to life-threatening infections, sepsis , and dehydration .
Pili multigemini, also known as "compound hairs," [2] is a malformation characterized by the presence of bifurcated or multiple divided hair matrices and papillae, giving rise to the formation of multiple hair shafts within the individual follicles. [3] [4]
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Dandruff, lint, sand, hair casts, and dried hairspray, can be mistaken for eggs and nits. [21] This is made easier by using a magnifying glass or running a comb through the child's wet hair, the latter of which is the most assured method of diagnosis and can be used to monitor treatment. [ 22 ]
Rapunzel syndrome is caused by the ingestion of hair. Rapunzel syndrome is characterized by a compulsive disorder of pulling one's own hair and ingesting it. There are several psychiatric disorders that are associated with Rapunzel syndrome, such as trichotillomania, trichophagia, and pica. Trichotillomania is the compulsion to pull out one's ...