行上颌窦根治手术多年以后发生的迟发性囊肿,称之为术后性上颌窦肿。临床上并非多见,现报道1例。患者男,54岁。因左而颊部肿胀,酸痛2个月,于1986年5月就诊。患者于20多年前曾因上颌窦炎施行过双侧上颌窦根治术。此次发病为面颊部肿胀、牙痛。曾诊断为牙龈炎,2月前拔除后,但牙痛未减,症状加重。鼻窦X线摄片示前壁有不规则骨质缺损,双上颌窦密 Delayed radical cyst sinus surgery occurred after many years of delayed cysts, known as postoperative maxillary sinus swollen. Clinically not uncommon, is reported in 1 case. Male patient, 54 years old. Due to the left cheek swelling, sore for 2 months, in May 1986 treatment. Patients underwent maxillary sinus surgery for maxillary sinusitis more than 20 years ago. The incidence of swelling of the cheek, toothache. Have been diagnosed with gingivitis, removed two months ago, but the toothache did not reduce the symptoms. Sinus X-ray showed anterior bone irregular bone defects, double maxillary sinus dense