Marfan Syndrome with Spontaneous Rupture of Aneurysm of Common Iliac Artery.

Marfan syndrome rarely presents with peripheral artery and pulmonary artery aneurysms. We are presenting a case of a fifteen-year-old boy who presented to us with progressive lower abdominal pulsatile swelling with bruit in the right inguinal region for one month. He had typical marfanoid habitus, though there was no history of similar illness in family. CT angiogram revealed the presence having giant right common iliac aneurysm along with interlobar pulmonary artery aneurysm. He had spontaneous rupture of aneurysm in right common iliac artery.