髓外浆细胞瘤为罕见肿瘤,多发生在上呼吸道及上消化道粘膜,发生在眼睑结膜临床上更为罕见,现将其报告并作病理研究。1 病例报告毛某某,女,66岁,湖北宜昌人,1989年11月18日来我院就诊;主诉左下睑肿块迅速增大一月余。一月前发现左下睑一肿块,扪及约黄豆大小,质较硬,不痛,未治疗。随后渐渐长大,而感眼部胀痛,伴有睁眼困难,无压痛,近半月来肿块生长迅速,进而使左 Extramedullary plasma cell tumors are rare tumors that occur in the upper respiratory tract and upper gastrointestinal mucosa. Occurrences in the eyelid conjunctiva are rarer. They are now being reported and used for pathological studies. 1 Case Report Mao Moumou, female, 66 years old, from Yichang, Hubei Province, came to our hospital on November 18, 1989; complained of a swelling of the left lower canthus more than a month later. A lump was found in the lower left eyelid a month ago, and the size of the soy bean was similar to that of the soybean. The quality was hard, no pain, and no treatment. Then she gradually grew up, and felt pain in the eyes, accompanied by blinking difficulties, no tenderness, rapid mass growth in the past half months, and then left