“…The features of this syndrome are contrasted with those of our cases, and anhidrotic and hidrotic ectodermal dysplasia in Table 2, The other syndrome, the L,A,D.D, syndrome, the main features of which are lacrimal duct atresia, auricular deformities, dental and digital anomalies, covers a similar range of defects (Hollister et al, 1973)-All these conditions may be inherited as autosomal dominant traits, although, when the E,E,C, syndrome was associated with mental retardation, the inheritance was autosomal recessive (Freire-Maia, 197°)-Ectodermal defects. The ectodermal defects in this syndrome share important features in common with the classical anhidrotic and hidrotic ectodermal dysplasias (Table 2), The presence of sweating, in reduced amounts, has already been noted in patients with features typical of anhidrotic ectodermal dysplasia (Everett et al, 1952), although this belies the description 'anhidrotic'. Until more satisfactory methods are available for evaluating the structure, distribution and response of sweat glands, this difficulty in defining the type of sweating abnormality will persist.…”