【Objective】 To study the location effect of the Mc Ab G9 to human esophageal carcinoma in tumor bearing nude mice. 【Methods】 125　I-G9 was prepared by Chloramine-T method. The distribution of 125 　 I-G9 was detected at different time (24, 48, and 72 h) after peritoneal injecti on. The percentage of the injected dose per gram of tissue(%ID/g) and the ratio of Tumor/non-Tumor were calculated. 【Results】 The distribution of 125　 I -G9 in tumor at the third day was showed by autoradiography obviously higher th an in other organ/tissue (except blood) and the highest is at the 48 h. The T/NT values are 2-7. The autoradiography indicated that radioactivity concentrated in tumor tissue. The concentration in tumor edge is more obvious than in the ce nter. 【Conclusion】 125　I-G9 has a considerable targeting activity and can well locate in esophageal carcinoma tissue in tumor bearing nude mice.

ive] Therapeutic effect of western medicine combined with Chinese herbal medicine for central serous chorioretinopathy (CSC) is observed. [Methods] Sixty-four patients with CSC were ran domly allocated to Group A ( n = 33) and Group B ( n = 31) . Group B were treated only with routine western medicine, and Group A added with Chinese herbal medicine with the actions of nourishing liver and kidney, invigorating spleen for eliminating dampness and activating blood-flow to remove blood-sta sis. Plasma catecholamine (CA) content and the activities of tissue plasminogen activator (tPA) and plasminogen activator inhibitor (PAI) were measured before and after treatment. [Results] The cure rate was 57.58% and 32.26%in Group A and Group B respectively, the difference being significant (P