Hydrocele in the maxillary antrum

Kubo Morihide

doi:10.18905/shikaigaku.64.3_209

Panoramic radiographs often show a dome-type uniform shadow in the maxillary antrum that is a retention cyst occurring in the mucosa. I investigated the clinical, biochemical and histological aspects of this lesion. I screened 1397 subjects and found shadows that seemed to be hydroceles in the maxillary antrums of 89 them(6.4%). Eight of the cases were bilateral. Since 47 of the cases were males and 42 females, there did not seem to be significant gender difference. Thirty of hydroceles were on the left side, 51 on the right, and 8 were bilateral. Sixty-four(66%)of the hydroceles were asymptomacic. The patient complained of buccal region discomfort for 31(32%)of the hydroceles, heavy-headedness for 8(8%)and tooth discomfort for 4(4%). Neither dental infections nor nasal allergies seemed to contribute to development of this cyst. Endscopic examinations of 65 cysts revealed that 48(74%)showed a large second aditus at meatus nasi medius and that 31(48%)of the hydroceles could be observed in maxillary antrum. There was no correlation between a large second aditus and the size of hydrocele. A positive reaction to Rivalta and Runeberg test revealed that the contents of the solution in the hydrocele was exudative. Bacterial examinations were all negative. Histopathological examinations revealed that the maxillary antrum mucosa was normal, and that the hydrocele contained serous fluid that pooled in connective tissue.

Hydrocele in the maxillary antrum

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