Autosomal dominant inheritance in Cantú syndrome (congenital hypertrichosis, osteochondrodysplasia, and cardiomegaly).

Cantú syndrome (CS) is characterized by congenital hypertrichosis, osteochondrodysplasia, cardiomegaly, and coarse facial appearance; autosomal recessive inheritance has been postulated. We report on a Mexican family with CS; the affected members are the 44-year-old father and his two children (a male and female), aged 14 and 4 years, respectively; each shows the classic characteristics, but the father and the brother also have a previously unreported feature, namely, a thick calvarium. This is the first reported instance of male-to-male transmission of CS. With the paternal age effect found in the reported sporadic cases and the segregation analysis [Robertson et al., 1999], autosomal dominant inheritance is more likely than autosomal recessive inheritance. The cases of affected sibs reported by Cantú et al. [1982] could be explained by parental gonadal mosaicism.