患儿,男,2周岁。自幼排尿时,大部分尿液自尿道口排出,少量尿液自阴茎腹侧瘘口漏出。既往无尿道结石、包皮环切、尿道手术史,无阴茎体外伤史,无泌尿生殖系统畸形家族史。体检:阴茎轻度下弯,包皮于阴茎背侧呈帽状堆积,于阴茎腹侧呈“V”形缺损,包皮系带缺如;尿道口位置正常。阴茎腹侧中线冠状沟近端可见一卵圆形瘘口,大小5mm×3mm,瘘口周围尿道菲薄,远侧尿道正常。双侧睾丸大小、位置正常,患儿站立排尿时可见大 Children, male, 2 years old. Urination from early childhood, most of the urine from the urethra discharge, a small amount of urine leak from the ventral fistula. Previous non urethral calculus, circumcision, urethral surgery history, history of non-penile body trauma, no genitourinary system family history of malformations. Physical examination: mild penile curvature, the foreskin in the dorsal penis was hat-like accumulation in the penile ventral was “V” -shaped defect, lack of foreskin lace; urethra normal position. The penile ventral midline coronary sulcus can be seen near the oval fistula, the size of 5mm × 3mm, thin urethra around the fistula, distal urethra normal. Bilateral testicular size, normal position, visible when standing urination