This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Which Ca. has best prognosis - 
Select and explain. 
A. Ca. Lip, B. Ca. Cheek, C. Ca. Tongue, D. Ca. Palate
A: Ca. Lip
Answer: A: Ca. Lip 
Explanation: Ans is 'a' ie Ca lip Carcinoma lip CliZO ttmi.;,": * Is a locally malignant tumor. Metastasized to lymph nodes early. * Metastases to lymph nodes is late. * 5 year survival rate is not more than 25' * Distant metastasis is rare and very late. Carcinoma palate * Local recurrence rate is low. Recognized late as it presents as a painless * Easily recognized early due to superficial site. ulcer. Carcinoma Cheek Invade the bone of hard palate, floor of the nasal * Is a slow growing tumor. cavity & maxillary antrum. * It metastasizes to lymph nodes but distant Tit involves removal of the underlying bone. metastasis is rare If the lesion is larger, paial maxillectomy is * Local recurrence is high after resection. done These descriptions of carcinoma clearly rank Ca lip with best prognosis.