Spontaneous Hemoperitoneum in Pregnancy: Masquerading as Acute Appendicitis

Spontaneous hemoperitoneum in pregnancy (SHiP) is a rare obstetric emergency that may have an adverse outcome for the mother and baby. This case report describes a unique SHiP case initially diagnosed as acute appendicitis in a patient with severe endometriosis before conception. A woman in her 30s, a primigravida, was admitted with abdominal pain at 32+5 weeks gestational age. Following a surgical review, she was initially diagnosed with acute appendicitis and commenced on intravenous antibiotics. She experienced a dramatic deterioration in her health in the form of clinical shock and fetal distress. She had an emergency laparotomy, a hysterectomy, and a left salpingo-oophorectomy for uncontrollable bleeding. The baby was born in good health, and the mother had an uneventful recovery.