An Atypical Cause of Primary Amenorrhea: A Case Report of Rare Vaginal Agenesis.

Vaginal agenesis is part of a group of anomalies, referred to as Mullerian anomalies due to their embryologic origin, in which there is a congenital absence of the vagina. We present a unique case in which a 20-year-old female presented to the Emergency Department with cyclical abdominal pain and primary amenorrhea. The original assessment showed a probable imperforate hymen; however, it was later found that she likely had vaginal agenesis.