[Intercalary deletions of 9q].

Two interstitial deletions of different segments of 9q are reported. The first deletion (9/11q22) was seen in an 8-year-old boy with severe psychomotor retardation and descrete facial dysmorphism. The second deletion (9q32q34) was seen in a 5-month-old boy with a very peculiar cranio-facial dysmorphism including brachycephaly, frontal bossing, a deep nasal bridge, a short nose, and absence of triradii b, c and d.