The t-shaped malformation is commonly associated with in-utero exposure (the so-called "DES-daughters") to DES, although it is also presented congenitally.
T-shaped uterus
Arcuate uterus
Bicornuate uterus
Unicornuate uterus
Couvelaire uterus
Boggy uterus
Retroverted uterus
Blighted ovum