患者,男30岁.因腹痛腹泻入院,申请B超检查双肾、膀胱等部位.采用美国百胜实时超声仪探头为3.5MHz环阵式.B超显示;膀胱内有一弯曲的管形强回声,形如“(?)”,长约5.0cm,后方伴宽大声影.其边缘粗糙不平,形如毛虫样,其内可见一细条状断续的无回声区,不随体位移动而改变位置.异物的一端游离于膀胱内;另一端延续于后尿道内,长约3.8cm.B超诊断:膀胱内后尿道异物嵌顿.X光平片报告,膀胱区耻骨上正中位置可见一宽约1cm阴影延续至后尿道.诊断:膀胱后尿道异物.后追问病史,患者于10年前,将塑料圆珠笔外壳直接插入生殖器内,以后未见排出,但每次排出小便时尿液呈细绳样,并有生殖器及下腹部轻度痛感、近一年来解小便呈点 Patients, male, 30. Admission for abdominal pain and diarrhea, apply for B-ultrasound renal, bladder and other parts using the American Yum real-time ultrasonic probe 3.5MHz loop matrix.B ultrasound display; bladder has a curved tubular echogenic, Its shape is like “(?)”, With a length of 5.0cm and a wide shadow at the back.Its edge is rough and rough, shaped like a caterpillar, where a strip of intermittent anechoic zone can be seen, which does not change with the position. One end free from the bladder; the other end of the continuation of the posterior urethra, about 3.8cm. B-diagnosis: bladder incision urethral foreign body.X-ray film report, the bladder area can be seen in the middle of the suprapubic width of 1cm shadow continuation To the posterior urethra Diagnosis: bladder urethral foreign body. After the medical history, the patient 10 years ago, the plastic ball-point pen shell directly inserted into the genitalia, no discharge after, but when the urination urine was thin rope-like, and Genital and lower abdominal mild pain, relieve the urine in the past year point