Ovarian agenesis - unilateral

Case contributed by Dr Bahman Rasuli

Presentation

Absence of left ovary in ultrasound exam. No history of previous surgery or trauma.

Patient Data

Age: 15 years
Gender: Female
MRI

The uterus is in the retroflex position measuring 30 x 47 x 65 mm.

The right ovary is measuring about 15 x 30 mm.

The left ovary is not seen at anatomical location.

Case Discussion

Unilateral ovary agenesis affects approximately 1 in one in 11,240 women while bilateral agenesis is even rarer 1. This condition may be the result of a congenital malformation especially when the entire ipsilateral fallopian tube is missing or ischemic events because of mechanical alterations such as torsion and subsequent resorption of the ovary during fetal life or childhood 2.

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