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Tulip sign

Last revised by Dr Daniel J Bell on 11 Jun 2022

The tulip sign is a sonographic clue for in utero diagnosis of severe hypospadias.

The configuration of a tulip is given by the severe curvature of the penis in association with the penoscrotal transposition of a bifid scrotum.

History and etymology

The tulip sign was first described in 2002 by Israel Meizner (fl. 2021), an Israeli obstetrician with an expertise in ultrasound 1.

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