[Partial monosomy 10p in a case investigated with tomodensitometry (author's transl)].

A new case of monosomy 10p without associated chromosomal abnormality is reported. This observation, compared with three others from the literature, shows the following common symptoms: microcephaly, antimongoloid slant of the palpebral fissures, low-set ears, prominent anthelix, congenital heart disease, abnormalities of the limbs. Cranial tomography demonstrates a midline developmental anomaly of the brain (cavum vergae associated with cavum septi pellucidi).