Rudimentary horn pregnancy mimicking tubal ectopic pregnancy: a diagnostic dilemma.
A woman in her 20s presented with 6 weeks of amenorrhea and a positive urine pregnancy test. Transvaginal ultrasound suggested an ectopic pregnancy with a gestational sac in the right adnexa and an empty uterine cavity.
Clinical pearl
Clinicians should consider rudimentary horn pregnancy in cases of suspected ectopic pregnancy, especially when ultrasound findings show an empty uterine cavity.