目的：探讨胆囊息肉样病变的自然演变过程，为其外科干预指征的把握提供参考。方法：收集3年内有连续超声资料的200例胆囊息肉样病变患者，分析其病变的大小、数目的超声影像学动态变化特点。结果：200例胆囊息肉样病变患者中，单发79例（39.5%），多发121例（60.5%）；息肉直径≥5 mm 113例（56.5%，其中单发45例），<5 mm 87例（43.5%），无>1 cm者。在3年的随访中，息肉缩小8例，消失10例，不变161例，三者占总数的89.5%（179/200），息肉增大21例（10.5%），但均未超过1 cm；53例由单发息肉变为多发息肉，6例由多发息肉变为单发息肉。结论：绝大多数胆囊息肉样病变的生长非常缓慢，为良性病变，可定期随访观察，无需手术处理。
Ultrasonographic dynamic observation of gallbladder polyps: a report of 200 cases followed for 3 years
Objective: To investigate the natural evolution process of polypoid lesion of the gallbladder, so as to provide a reference for determination of its indications for surgery. Methods: Two-hundred patients with polypoid lesions of the gallbladder who had consecutive ultrasonographic data within 3 years were collected. The ultrasonic characteristics of the changes in size and number of their lesions were analyzed. Results: Among the 200 patients with polypoid lesion, 79 cases (39.5%) had single lesion, and 121 cases (60.5%) multiple lesions. The diameter of lesion in 113 cases (56.5%, that included 45 cases with single lesion) was ≥5 mm, in 87 cases (43.5%) was <5 mm, and in none of them was >1 cm. During 3 years of follow-up, the lesions were found to be reduced in size in 8 cases, disappeared in 10 cases and unchanged in 161 cases, which accounted for 89.5% (179/200) of the whole group. The lesions were found to be enlarged in only 21 cases (10.5%), but no lesion was greater than 1 cm. Conclusion: The majority of polypoid lesions of the gallbladder grow very slowly and are benign lesions, and can be managed by regular follow-up with no need of surgical treatment.