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当前学科：临床病理科住院医师
题目：
单选题
男童，12岁。右阴囊肿大3年，晨起变小，活动后增大。查：右阴囊肿大，可触及囊性感，挤压时缩小，缩小时可触到睾丸，应诊断为（）
A
右斜疝
B
右睾丸鞘膜积液
C
右精索鞘膜积液
D
右睾丸交通性鞘膜积液
E
右精索静脉曲张
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