White sponge nevus in a patient with EEC syndrome.

A 10-year-old boy, affected by cleft lip and palate and the Ectrodactyly-Ectodermal Dysplasia-Clefting (EEC) syndrome, presented with hypodontia, microdontia, enamel hypoplasia and caries, as well as white macules and plaques on the buccal mucosa bilaterally. Verrucous plaques were noted on the right side and a smooth diffuse white macule was present on the left side. Samples of each were taken by incisional biopsy.