Meizner I, Mashiach R, Shalev J, Efrat Z, Feldberg D
Ultrasound Unit, Women's Health Center, Rabin Medical Center, Petah-Tikva, Israel.
Ultrasound Obstet Gynecol. 2002 Mar;19(3):250-3. doi: 10.1046/j.1469-0705.2002.00648.x.
To describe a unique sonographic sign for prenatal detection of severe penoscrotal hypospadias.
Ultrasound findings of hypospadias diagnosed in the second trimester of pregnancy in seven patients were compared with postnatal clinical features. All patients were recruited from routine sonographic examinations performed for various obstetric indications.
In six of the seven cases with hypospadias, a severe form of peno-scrotal hypospadias was found. In all six cases, a unique ultrasound feature was observed represented by extreme ventral angulation of the penis, with or without chordee, in a form resembling a tulip flower. This 'tulip' is formed by the ventrally bent penis located between the two scrotal folds. In all six patients, the postnatal pictures of the newborns' genitalia corresponded perfectly to the prenatal sonograms. Associated anomalies occurred in two cases, with Nager syndrome in one case and mild renal hydronephrosis in the other case.
The 'tulip sign' is a specific ultrasonic finding of severe hypospadias. The recognition of this may help to distinguish between severe hypospadias and other genital abnormalities (e.g. ambiguous genitalia).
描述一种用于产前检测重度阴茎阴囊型尿道下裂的独特超声征象。
将7例妊娠中期诊断为尿道下裂患者的超声检查结果与产后临床特征进行比较。所有患者均来自因各种产科指征进行的常规超声检查。
7例尿道下裂患者中有6例为重度阴茎阴囊型尿道下裂。在所有6例中，均观察到一种独特的超声特征，表现为阴茎极度腹侧弯曲，伴或不伴有阴茎下弯，形似郁金香花。这种“郁金香”由位于两个阴囊皱襞之间的腹侧弯曲阴茎形成。在所有6例患者中，新生儿生殖器的产后图像与产前超声检查结果完全相符。2例出现相关异常，1例为纳格尔综合征，另1例为轻度肾积水。
“郁金香征”是重度尿道下裂的一种特异性超声表现。识别这一征象可能有助于区分重度尿道下裂与其他生殖器异常（如两性畸形）。
