A 27-year-old woman arrived at an emergency department in Kolkata, India, with six hours of abdominal pain and vomiting. She was 12 weeks pregnant, and an earlier dating scan had come back normal. The ultrasound found what her doctors expected: one living fetus, steady heartbeat, normal movement. Then it found what nobody expected.
Beside the uterus, on the left side of her abdomen, sat a second fetus. It was dead. It was calcified. And by the length of its femur, it had reached about 22 weeks before it died.
