[Imaging-Based Diagnostic Approach to Abdominal Pain in Patients with Neurological and Neuropsychiatric Disorders].

We focused on diseases causing both neurological and intestinal disorders and introduce representative cases with a case based review. We frequently encountered chronic constipation in patients with schizophrenia, dementia, and Parkinson's disease, and treated them with commonly used conservative management approaches. However, some serious diseases that require early diagnosis and treatment may also be present and should be identified. We discuss the pathophysiology and image features of these serious diseases.