This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Amino acid Metabolism, Subject name: Pediatrics
[{'content': 'A child presented with tall stature, long spider leg like fingers, chest deformity and some vision problems. His eye examination shows the following: What is your diagnosis? \nSelect and explain. \nA. Marfan syndrome, B. Lowe syndrome, C. Homocystinuria, D. GM1 gangliosidosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The skeletal abnormalities like tall stature, long spider leg like fingers, chest deformity and presence of eye lens dislocation in the superolateral direction, points to a diagnosis of Marfan syndrome. Homocystinuria- inferonasal dislocation of lens + marfanoid features Lowe syndrome- cataract GM1 gangliosidosis- macular cherry red spots', 'role': 'assistant'}]