[Monosomy 7qter (author's transl)].

A de novo terminal del (7)(q35) was found in a 3-month-old girl referred because of a peculiar cry. This observation, with seven others from the literature permit the delineation of a syndrome characterized by severe microcephaly with a flattened occiput, a bulbous nose, a "double chin", and a broad thorax with widely spaced nipples, without internal organ malformations. Assays of Hageman factor (XII) revealed normal values. The proposita is heterozygous Jk (a + b +). The parents and the proposita are iny-1.