Neuropsychiatric and neuropathologic findings in an adult case of cri-du-chat syndrome (Lejeune syndrome, crying cat syndrome)

It is reported on a mental retarded female, observed from 3-33 years of age, which demonstrated even in adulthood with long lasting shrill crying the clinical leading symptom of Lejeune syndrome and further typical symptoms with inhibition of physical maturation, important delayed motoric and mental development, microcephaly resp. characteristic craniofacial dysmorphia, anomalies of extremities, muscular hypotonia and susceptibility to infection. Psychically there were a striking affective instability and irritability, neuropathologically pachygyria and multiple cortical heterotopias.