A wide range of genitourinary pathologies can be diagnosed in utero, from a simple vesicoureteral reflux to a more complex disorder of sexual differentiation. The prognosis and neonatal management of these conditions differ significantly. Evaluation of the fetal perineal anatomy is paramount to making the right diagnosis. The aim of this pictorial essay is to show sonographers how to acquire a perineal midsagittal view in a male fetus, and to demonstrate how this specific view allows assessment of the urethra and penis, to differentiate various genitourinary pathologies.

中文翻译：

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男性胎儿的会阴中矢状位-对评估泌尿生殖系统疾病至关重要。

从简单的膀胱输尿管反流到更复杂的性别分化疾病，子宫内可以诊断出各种各样的泌尿生殖道疾病。这些疾病的预后和新生儿治疗有显着差异。对胎儿会阴部解剖结构的评估对于做出正确的诊断至关重要。这篇图片文章的目的是向超声医师展示如何在男性胎儿中获取会阴中矢状位，并展示这种特定的视野如何评估尿道和阴茎，从而区分各种泌尿生殖道疾病。