Biomaterial Database

[Microdeletion 22q11.2. A too rarely diagnosed genetic change in psychiatric illnesses]. 2002

T Leyhe, and T Haarmeier, and A Dufke, and H Giedke

Klinik für Psychiatrie und Psychotherapie, Universität Tübingen, Osianderstrasse 24, 72076 Tübingen.

Microdeletion 22q11.2 with an estimated incidence of 1:4000 is known to cause the DiGeorge syndrome (DGS) or the velocardiofacial syndrome (VCFS), both usually being diagnosed in the newborn period or childhood. Recent studies have shown that children suffering from VCFS frequently develop psychiatric disorders in late adolescence or adulthood. Here we report the case of a 30-year-old man presenting with slight facial dysmorphisms, hypoparathyreoidism, minor cardiac anomalies, and slight cognitive impairments who had developed a severe personality disorder which eventually led to the diagnosis of microdeletion 22q11.2 with maternal inheritance. Psychiatric patients should be thoroughly examined for typical signs associated with this chromosomal anomaly. Genetic diagnosis is necessary because of the 50% probability of inheritance with possibly severe congenital anomalies. In view of a prevalence of 2% in an unselected group of patients with schizophrenic psychosis, microdeletion 22q11.2 is likely to be underdiagnosed.

UI	MeSH Term	Description	Entries
D007011	Hypoparathyroidism	A condition caused by a deficiency of PARATHYROID HORMONE (or PTH). It is characterized by HYPOCALCEMIA and hyperphosphatemia. Hypocalcemia leads to TETANY. The acquired form is due to removal or injuries to the PARATHYROID GLANDS. The congenital form is due to mutations of genes, such as TBX1; (see DIGEORGE SYNDROME); CASR encoding CALCIUM-SENSING RECEPTOR; or PTH encoding parathyroid hormone.	Idiopathic Hypoparathyroidism,Hypoparathyroidism, Idiopathic
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009483	Neuropsychological Tests	Tests designed to assess neurological function associated with certain behaviors. They are used in diagnosing brain dysfunction or damage and central nervous system disorders or injury.	Aphasia Tests,Cognitive Test,Cognitive Testing,Cognitive Tests,Memory for Designs Test,Neuropsychological Testing,AX-CPT,Behavioral Assessment of Dysexecutive Syndrome,CANTAB,Cambridge Neuropsychological Test Automated Battery,Clock Test,Cognitive Function Scanner,Continuous Performance Task,Controlled Oral Word Association Test,Delis-Kaplan Executive Function System,Developmental Neuropsychological Assessment,Hooper Visual Organization Test,NEPSY,Neuropsychologic Tests,Neuropsychological Test,Paced Auditory Serial Addition Test,Repeatable Battery for the Assessment of Neuropsychological Status,Rey-Osterrieth Complex Figure,Symbol Digit Modalities Test,Test of Everyday Attention,Test, Neuropsychological,Tests, Neuropsychological,Tower of London Test,Neuropsychologic Test,Test, Cognitive,Testing, Cognitive,Testing, Neuropsychological,Tests, Cognitive
D010260	Paranoid Personality Disorder	A personality disorder characterized by the avoidance of accepting deserved blame and an unwarranted view of others as malevolent. The latter is expressed as suspiciousness, hypersensitivity, and mistrust.	Personality Disorder, Paranoid,Paranoid Personality,Disorder, Paranoid Personality,Disorders, Paranoid Personality,Paranoid Personalities,Paranoid Personality Disorders,Personalities, Paranoid,Personality Disorders, Paranoid,Personality, Paranoid
D010641	Phenotype	The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.	Phenotypes
D002872	Chromosome Deletion	Actual loss of portion of a chromosome.	Monosomy, Partial,Partial Monosomy,Deletion, Chromosome,Deletions, Chromosome,Monosomies, Partial,Partial Monosomies
D002892	Chromosomes, Human, Pair 22	A specific pair of GROUP G CHROMOSOMES of the human chromosome classification.	Chromosome 22
D003937	Diagnosis, Differential	Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures.	Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D004062	DiGeorge Syndrome	Congenital syndrome characterized by a wide spectrum of characteristics including the absence of the THYMUS and PARATHYROID GLANDS resulting in T-cell immunodeficiency, HYPOCALCEMIA, defects in the outflow tract of the heart, and craniofacial anomalies.	Velocardiofacial Syndrome,22q11.2 Deletion Syndrome,22q11.2DS,Autosomal Dominant Opitz G-Bbb Syndrome,Catch22,Conotruncal Anomaly Face Syndrome,Conotruncal Anomaly Face Syndrome (CTAF),Deletion 22q11.2 Syndrome,DiGeorge Anomaly,DiGeorge Sequence,Familial Third and Fourth Pharyngeal Pouch Syndrome,Hypoplasia of Thymus and Parathyroids,Pharyngeal Pouch Syndrome,Sedlackova Syndrome,Shprintzen Syndrome,Shprintzen VCF Syndrome,Third and Fourth Pharyngeal Pouch Syndrome,Thymic Aplasia Syndrome,VCF Syndrome,Velo-Cardio-Facial Syndrome,Autosomal Dominant Opitz G Bbb Syndrome,Deletion Syndrome, 22q11.2,Syndrome, DiGeorge,Syndrome, Sedlackova,Syndrome, Shprintzen,Syndrome, VCF,Syndrome, Velo-Cardio-Facial,Syndrome, Velocardiofacial,Velo Cardio Facial Syndrome