Pediatrics A 9 month infant presents with a head circumference of 39 cm. All of the following can be the underlying causes EXCEPT? A Edward syndrome B Maternal smoking C Alexander disease D Congenital Toxoplasmosis 💡 Explanation A 9 month infant presents with a head circumference of 39 cm. All of the following can be the underlying causes EXCEPT? ✓ Correct Answer: C. Alexander disease