The following are featurof Aicardi syndrome EXCEPT

Correct Answer: D

Rationale: Aicardi syndrome, an X-linked disorder, featurcoloboma , retinal lacunae , corpus callosum agenesis , and severe seizur. Aminoaciduria is not associated; metabolic errors are absent. This neurologic-ocular focus makes D the exception and correct answer.

Correct Answer: D

Rationale: Neuroimaging is indicated for abnormal exams , morning headach, cough headach, and no migraine family history , signaling pathology. Frontal headache is common in migraines/tension, not a red flag alone. Specificity of signs makes D the exception and correct answer.

Correct Answer: D

Rationale: Sydenham chorea , post-streptococcal (rheumatic fever), is the most common acquired childhood chorea, per incidence data. Huntington is genetic, rare in kids; paraneoplastic and hereditary are uncommon; chorea gravidarum affects pregnancy. Sydenhams prevalence makes D the correct answer.

Correct Answer: D

Rationale: Pediatric MS presents with hemiparesis , optic neuritis , ataxia , and dysarthria from demyelination. Encephalopathy is rare, suggesting infection or ADEM, not MS. This clinical pattern makes D the exception and correct answer.

Correct Answer: C

Rationale: SVcPACNS presents with cognitive dysfunction , per studies, from diffuse small vessel inflammation. Stroke , seizur, personality chang, and social loss are less typical. Cognitive impact makes C the correct answer.