Pseudoaneurysm with arteriovenous fistula due to placenta increta following 1st-trimester abortion

Introduction A pseudoaneurysm is defi ned as dilatation of an artery with partial or full disruption of the vessel wall; causes include infection and vascular injury. Blood escaping from a defect in the artery wall dissects the adjacent tissues, leading to a perivascular haematoma. If the haematoma maintains its communication with the parent vessel, a pseudoaneurysm may develop (Soyer et al. 2008). A pseudoaneurysm is a very rare cause of haemorrhage aft er spontaneous abortion. Placenta increta in the 1st trimester is also rare and may cause post-abortal profuse bleeding (Ju and Kim 2007). We report a case of a pseudoaneurysm with arteriovenous (AV) fi stula due to placenta increta following a 1st-trimester abortion.