The practice of surgery . Enlargement of the Antrum, by accumulation of fluid within. Poli/pus of the Antrum. ^ The lining membrane of this cavity, like that of the nostrils, maygive origin to polypous formations. But the occurrence of benign polypihere is comparatively rare. The medullary formation is not uncommon;constituting the origin of osteocephaloma, as affecting this bone ; andamenable to the ordinary rules of treatment (Principles, 3d Am Edp. 457). r Did plain indications exist of the presence of a benign polypus— TUMORS OF THE SUPERIOR MAXILLA. 181 mucous or fibrous—within the antrum
The practice of surgery . Enlargement of the Antrum, by accumulation of fluid within. Poli/pus of the Antrum. ^ The lining membrane of this cavity, like that of the nostrils, maygive origin to polypous formations. But the occurrence of benign polypihere is comparatively rare. The medullary formation is not uncommon;constituting the origin of osteocephaloma, as affecting this bone ; andamenable to the ordinary rules of treatment (Principles, 3d Am Edp. 457). r Did plain indications exist of the presence of a benign polypus— TUMORS OF THE SUPERIOR MAXILLA. 181 mucous or fibrous—within the antrum, it would certainly be our dutyto expose the cavity, by suitable incision, from the mouth ; with orwithout division of the lip ; and to eradicate the morbid growththoroughly. Such cases, however, are extremely rare. Tumors of the Superior forms of tumor are liable to occur in this bone : Osteosarcoma Fig. Large Osteosarcoma of Upper Jaw; macerated, showing the osseous stroma. Still limited to the superiormaxilla, in which it originated. (Howship.) and Osteocephaloma; tumors very different in themselves, and re-quiring very different treatment. The one, early irremediable ; theother, capable of cure at an advanced date, and after a large or evenenormous size has been attained [Principles, 3d Am. Ed. p. 457). The osteosarcoma may reach a large size by external bulging, and byexpansion of the bone ; but, unless it degenerate in structure, it remainslimited within the confines of the superior maxilla; and, consequently,by removal of that bone alone, the whole of the diseased formation maybe taken away. The swelling projects into the fauces, into the mouth,and outwards on the cheek ; the main protuberance is in the last-nameddirection, interfering with articulation, mastication, and vision ; a thinserous discharge escapes by the mouth, seldom bloody, and seldom of-fensive ; and the general
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