and several other related disorders are grouped
under the heading of
pervasive developmental disorders (PDDs). These
disorders all have similar symptoms.
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
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.
American Psychiatric Association (2000). Autistic
disorder. In Diagnostic and Statistical Manual of Mental Disorders, 4th ed., text rev., pp. 70–75. Washington, DC: American
April 3, 2012
John Pope, MD - Pediatrics
& Fred Volkmar, MD - Child and Adolescent Psychiatry
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