This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and PNS, Subject name: ENT
[{'content': "Ohgren's line passes from - \nSelect and explain. \nA. Medial canthus to angle of mandible, B. Lateral canthus to angle of mandible, C. Medial canthus to mastoid process, D. Lateral canthus to mastoid process", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Medial canthus to angle of mandible Ohngren's classification of maxillary carcinoma:o Presented by the ohngren's line which passes from the medial canthus of the eye to the angle of mandible,o The growths situated above this plane have a poorer prognosis than those situated below.Ohngren's line (1933)o A line from medial canthus of the eye to the angle of the mandible.# Anteroinferior/infrastructure : Good prognosis.# Superoposterior/suprastructure: Poor prognosis, early extension (eye, skull base, pterygoids, and intratemporal fossa).", 'role': 'assistant'}]