This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
The dotted line has clinical significance in case of 
Select and explain. 
A. Maxillary sinusitis, B. Maxillary carcinoma, C. Mandibular fracture, D. Maxillary fracture
B: Maxillary carcinoma
Answer: B: Maxillary carcinoma 
Explanation: The above line is OHNGREN'S line - extending from medial canthus of the eye to the angle of mandible Maxillary carcinoma arising anteroinferior to this line has a better prognosis than posterosuperior carcinoma Ohngren's classification. An imaginary plane is drawn, extending between medial canthus of eye and the angle of mandible . Growths situated above this plane (suprastructural) have a poorer prognosis than those below it (intrastructural). Ref : Diseases of ENT by Dhingra 6th edition Pgno : 207