Tinea amiantacea (asbestos-like tinea) is the name given by Alibert1 to a disease of the scalp in which heavy scales extend onto the hairs and separate and bind together their proximal portions. The process may be only slightly inflammatory with dry, micaceous scales, or markedly inflammatory with admixture of a crust. Alibert mentioned an early moist stage, followed by a drier one. Removal of the scales reveals normal or erythematous, edematous epidermis. The condition usually appears during childhood, generally on the crown. It may be circumscribed or diffuse. It is chronic but curable. It is hot followed by atrophy, scarring or alopecia. Microscopic section has shown normal hairs, with completely cornified epithelial cells in the scales, not infrequently between islands of coagulated serum. Little information is available regarding the cause except that the condition often occurs on a preexisting dermatosis, such as herpes tonsurans, alopecia areata, pediculosis, pyodermia and
BECKER SW, MUIR KB. TINEA AMIANTACEA. Arch Derm Syphilol. 1929;20(1):45–53. doi:10.1001/archderm.1929.01440010053006
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