A supernumerary small acrocentric chromosome seen in a patient of mental retardation associated with schizophrenia-like psychosis.
D000328:Adult; D002869:Chromosome Aberrations / Q000150:complications*; D025063:Chromosome Disorders; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D007621:Karyotyping; D011618:Psychotic Disorders / Q000235:genetics*; D012559:Schizophrenia