Delusion has always been a central topic for psychiatric research with regard to etiology, pathogenesis, diagnosis, treatment, and forensic relevance. The various theories and explanations for delusion formation are reviewed. The etiology, classification and management of delusions are briefly discussed. Recent advances in the field are reviewed.

He has an experience of 51 years in the field of genetics and added valuable contribution in the field of pediatric genetics and community health in India. He handled approximately 2000 cases with expertise in Fetal Medicine and Reproductive Genetics. Current areas of interest and/or active clinical practices: Management of fetal medicine and reproductive genetics; Dysmorphology; Genetic counseling and prenatal diagnosis using molecular, cytogenetic and biochemical techniques.

Background:Diagnostic and treatment hierarchical reductionisms have resulted in an oversight of anxiety syndromes in schizophrenia.Aim:The aim of this study was to find the prevalence of different anxiety disorders in schizophrenia patients.Materials and Methods:The study was conducted on inpatients of a tertiary care psychiatric hospital using a prospective, purposive sampling technique. The study consisted of 93 schizophrenia patients and a similar number of normal controls. The schizophrenia patients and controls were evaluated for psychopathology and the presence of anxiety disorder.Results:The prevalence of anxiety disorder was significantly higher in schizophrenia patients (45.16%) compared to controls (16.12%). Further, the prevalence of panic disorder, social anxiety disorder, and obsessive-compulsive disorder (OCD) was significantly higher in schizophrenia patients. No significant correlation was observed between anxiety disorder scores and psychopathology scores.Conclusions:The prevalence of comorbid anxiety disorders (panic disorder, social anxiety disorder, and OCD) in schizophrenia is significantly higher in the general population. The onset of anxiety disorder commonly precedes the onset of schizophrenia.

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