system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
In a child with OCD, MRI will reveal reduced volume / atrophy in :
assistant
The correct answer is  Orbito Frontal cortex, basal ganglia and head of caudate nucleus are involved in obsessive compulsive disorder.