![]() Individuals affected by certain ED syndromes cannot perspire. Care must be taken to prevent cracking, bleeding, and infection. Skin can be prone to rashes or infections and can be thick over the palms and soles. In some cases, red or brown pigmentation may be present. Skin sustaining injury may grow back permanently hypo-pigmented. Kinky hair is also a possibility.įingernails and toenails may be thick, abnormally shaped, discolored, ridged, slow-growing, or brittle. The hair may grow very slowly or sporadically and it may be excessively fragile, curly, or even twisted. Scalp and body hair may be thin, sparse, and very light in color, even though beard growth in affected males may be normal. Individuals affected by an ED syndrome frequently have abnormalities of the hair follicles. Diagnosis is usually by clinical observation, often with the assistance of family medical histories so that it can be determined whether transmission is autosomal dominant or recessive.Įctodermal dysplasias are described as "heritable conditions in which there are abnormalities of two or more ectodermal structures such as the hair, teeth, nails, sweat glands, salivary glands, cranial-facial structure, digits and other parts of the body." Presentation Hair ĭespite some of the syndromes having different genetic causes, the symptoms are sometimes very similar. : 570 More than 150 different syndromes have been identified. This image shows peg-shaped teeth and sparse hair.Įctodermal dysplasia ( ED) is a group of genetic syndromes all deriving from abnormalities of the ectodermal structures.
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