PANDAS is hypothesized to be an autoimmune disorder that results in a variable combination of tics, obsessions, compulsions, and other symptoms that may be severe enough to qualify for diagnoses such as chronic tic disorder, OCD, and Tourette syndrome (TS or TD). The cause is thought to be akin to that of Sydenham’s chorea, which is known to result from childhood Group A streptococcal (GAS …