29th April 2024

A 25-year-old woman, who is 8 weeks pregnant according to her last menstrual period, presents to the emergency department with sharp, unilateral lower abdominal pain and light vaginal spotting.

A 25-year-old woman, who is 8 weeks pregnant according to her last menstrual period, presents to the emergency department with sharp, unilateral lower abdominal pain and light vaginal spotting. She reports feeling lightheaded. Her last menstrual period was regular, but she has not had an antenatal check-up yet.

On examination, her blood pressure is 100/60 mmHg, pulse rate is 95 bpm, and she appears pale. The abdominal examination reveals tenderness in the left lower quadrant. Pelvic examination shows a closed cervix with no active bleeding, but there is tenderness on the left adnexal area.

Which is the most likely diagnosis?