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Skin layers

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Ectodermal dysplasia

Alternative Names: Anhidrotic ectodermal dysplasia Symptoms: Lower-than-normal number of teeth Delayed or absent tooth formation Inability to sweat Absent tears (occasional) Thin skin Decreased skin pigment Foul-smelling nasal discharge Poor temperature regulation Heat intolerance Scanty hair Absent hair Abnormal nails Low nasal bridge Signs and tests: Biopsy of the mucous membranes (indicates absent or poorly-formed mucous membranes) Biopsy of the skin (indicates absent or poorly-formed sweat glands) Genetic testing (available for some subtypes of this group of disorders)

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