含牙囊肿是环绕着未萌出牙的牙冠，且附于牙颈部的囊肿，大多数发生在下颌骨第三磨牙，发生于上颌骨者较少。我科曾收治左上颌窦巨大含牙囊肿１例，现报告如下。患者，男，２７岁，左面部渐进性肿胀１３年，后期面部隆起变形，无头痛、鼻阻、流脓涕等症状，发病前３月有左面部 Cyst containing the teeth is not around the eruption of the tooth crown, and attached to the neck of the cyst, most occurred in the third molar mandibular, occurred in the maxilla less. My department had admitted a huge case of left maxillary sinusitis, reported as follows. Patients, male, 27 years old, gradual swelling of the left facial Ministry for 13 years, the latter part of the facial uplift deformation, no headache, nasal resistance, purulent tears and other symptoms, the onset of March before the left facial