Reddy E R
J Can Assoc Radiol. 1985 Mar;36(1):47-8.
Sixty-two patients with retained lead shot in their appendices, discovered during routine radiographic studies, were followed for periods ranging from two months to 13 years. The number of lead shot in the appendices varied from one to over 200. Twenty patients who had barium studies showed no evidence of luminal obstruction of their appendices. Eight patients who had appendectomies showed no evidence of appendicitis on tissue examination. None of the other patients developed any clinical evidence of appendicitis or lead poisoning. It is concluded that no causal relationship exists between retention of lead shot, their number, the duration of their presence in the appendix, and appendicitis.
62例在常规影像学检查中发现阑尾内有残留铅弹的患者，随访时间为2个月至13年不等。阑尾内铅弹数量从1颗到200多颗不等。20例行钡剂检查的患者未显示阑尾腔梗阻迹象。8例行阑尾切除术的患者组织检查未发现阑尾炎迹象。其他患者均未出现阑尾炎或铅中毒的临床证据。结论是，铅弹残留、其数量、在阑尾内存在的时间与阑尾炎之间不存在因果关系。
