Girls are more often seen than boys, but patients from both sexes have been described (Figure 1). Figure 1: Familial and sporadic cases of gigantism and male and female growth patterns due to Xq26.3 ...

Jayson has gigantism, a 'condition where there is a ... 26 inches - more than six inches longer than the average male baby. By age seven, he was already over five-foot, and now, at age 10, he ...

It is caused by microduplications at chromosome Xq26.3, first described in 13 subjects with early-onset gigantism. These microduplications span an area of 500 Kb containing 4 genes. Among these genes, ...