上颌窦出血性病变引起鼻出血多见,而上颔窦浆液性囊肿致鼻出血则未见有报道。现将我科收治一例报告如下。患者,男,56岁,因左鼻出血2天于85年12月8日入院。病案号:45739。患者于12月6日晚无明显诱因左鼻突然出血,未伴有任何自觉症状,经某医院以凡士林纱条充填左鼻腔,出血停止后返家。7日下午左鼻又出血,重新行左前鼻孔填塞, Maxillary sinus hemorrhage caused by bleeding more common, and sinusoidal cyst caused by epistaxis have not been reported. Now we receive a case report is as follows. The patient, male, 56 years old, was admitted to hospital on December 8, Case number: 45,739. Patients on the evening of December 6 no obvious incentive left sudden nose bleed, without any symptoms, the hospital filled with vaseline gauze left nasal cavity, bleeding stopped to return home. On the afternoon of the 7th left another bleed, re-line the left nostril stuffing,