A 23-year-old woman has the sudden onset of lower abdominal…
A 23-year-old woman has the sudden onset of lower abdominal pain. Pelvic examination reveals a normal sized uterus and normal appearing cervix and vagina. However, there is marked tenderness upon palpation of the left adnexal region. A transvaginal ultrasound shows no intrauterine gestational sac, but there is a 2 cm left adnexal mass along with elevated serum hCG. Culdoscocentesis yields bloody fluid. Which condition is this most likely?