This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Musculoskeletal Radiology, Subject name: Radiology
[{'content': 'Not a feature of Achondroplasia \nSelect and explain. \nA. Tombstone iliac bone, B. Champagne glass pelvis, C. Acromelic dwarfism, D. Bullet shaped veebra', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Achondroplasia :- - an autosomal dominant condition with altered FGFR3 Gene - Most common skeletal dysplasia - It has Rhizomelic Dwarfism(Shoened Proximal Bones) - M/C/C of dispropoionate dwarfism Features includes :- - champagne glass pelvis - tombstone iliac bone - bullet shaped veebra Bowed and sho bones of the legs with square lilac blades and champangne glass pelvis. Achondroplasia.', 'role': 'assistant'}]