Acute abdomen with bones in the spleen.

INTRODUCTION: A 28-year old female presented with a non-radiating persistent left upper quadrant pain and tenderness for 5 weeks. METHODS: A preliminary CT scan displayed bony structures in the spleen. A delayed scanning subsequently showed the bones to have changed position, consistent with a life fetus. RESULTS: Ultrasound confirmed the CT findings, and ascertained the fetus to be consistent with 13 weeks of gestation. Laparoscopic splenectomy was performed and examination of the intact spleen confirmed a male fetus that was morphologically normal. CONCLUSION: This is the first report of fetal bony structures in the spleen associated with an advanced intra-splenic pregnancy.