Uterine Septum

A uterine abnormality that occurs during a woman's own prenatal development, in which there is a band of tissue in the middle of a the uterus that causes the uterus to not form properly. Because of the abnormality, women with the condition are at an increased risk of experiencing a miscarriage.
Found on http://www.pregnology.com/AZ/U/3

Uterine Septum

A band of tissue in the midsection of the uterus that divide the normal uterine cavity.
Found on http://www.thebridgecentre.co.uk/04_causesofinfertility/glossary_of_terms.h

Uterine septum

A uterine septum is a form of a congenital malformation where the uterine cavity is partitioned by a longitudinal septum; the outside of the uterus has a normal typical shape. The wedge-like partition may involve only the superior part of the cavity resulting in an incomplete septum or a subseptate uterus, or less frequently the total length of th
Found on http://en.wikipedia.org/wiki/Uterine_septum
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