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The prognosis of epidermoid carcinoma is least favorable

 # Of the following locations, the one in which the prognosis of epidermoid carcinoma is least favorable is:
A. Lower lip
B. Hard palate
C. Buccal mucosa
D. Posterior lateral border of tongue


The correct answer is D. Posterior lateral border of tongue.

The epidermoid carcinoma/ squamous cell carcinoma is the most common malignant neoplasm of the oral cavity. Although it may occur at any intraoral site, certain sites are more frequently involved than
others. Because of the differences in clinical appearance, the nature of the lesion and particularly the prognosis, it is well to describe the tumors individually, as they may arise in these various areas.

Of the areas of the oral cavity, the mortality rate is lowest for lip cancer (0.04 per 100,000) and highest for the tongue (0.7 per 100,000).

Reference: Shafer’s Textbook of ORAL PATHOLOGY, 7th Edition, Page No: 103

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