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CARCINOMA OF THE MAXILLARY ANTRUM Introduction

Carcinoma of the antrum tends to present late. This is because the tumour commences by growing within the cavity of the sinus, and causes little by way of symptoms until it begins to invade its walls or to extend into the nose. The presentations include:

• nasal obstruction; • nasal bleeding; • numbness of the face due to involvement of the infraorbital nerve; • numbness of the roof of the mouth due to involvement of the greater

palatine nerve; • swelling of the face due to expansion of the bone of the maxilla by

enlarging tumour; and • displacement of the eye with double vision, caused by invasion of the

orbit by tumour from below.