医源性上颌窦异物较为罕见 ,我科于 1996年发现 1例 ,报道如下 :患者女 ,48岁。因左面部反复肿痛拟左上颌窦囊肿伴感染于 1996年 10月 8日入院。检查 :一般情况良好 ,左面部鼻侧触及 2ｃｍ× 2ｃｍ包块 ,质中 ,压痛 (+ ) ,与骨质粘连 ,眼球无外突及移位 ,鼻腔 (- ) ,鼻窦片示 : Iatrogenic maxillary sinus foreign body is relatively rare, our department in 1996 found in 1 case, reported as follows: Female patient, 48 years old. Due to repeated swelling and pain on the left side of the left maxillary sinus cyst with infection in October 8, 1996 admission. Check: The general condition is good, the left side of the nasal touching 2cm × 2cm mass, quality, tenderness (+), and bone adhesions, no protrusion and displacement of the eyeball, nasal cavity (-), sinuses showed: