Also, there are several medical conditions that can be confused with autism because of similar symptoms. Some of these medical conditions can occur along with autism but are not classified as PDDs. They include:
Specific diagnostic guidelines are used to distinguish autism from other conditions.1 Although other PDDs and certain medical conditions share some symptoms, they do not meet all of the diagnostic criteria for autism.
Last Revised: April 3, 2012
Author: Healthwise Staff
Medical Review: John Pope, MD - Pediatrics & Fred Volkmar, MD - Child and Adolescent Psychiatry
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