Tehran University of Medical Sciences Acta Medica Iranica 0044-6025 51 10 2013 10 15 733 735 EN Seyed Jalil Mirhosseini Department of Cardiovascular Surgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran. Mehrdad Salehi Department of Cardiovascular Surgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran. Sadegh Ali-Hassan-Sayegh Yazd Cardiovascular Researches Center, Afshar Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Khalil Forouzannia Department of Cardiovascular Surgery, Afshar Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Ali Akbar Karimi-Bondarabadi Yazd Cardiovascular Researches Center, Afshar Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran 2015 10 11 Mediastinitis is an infrequent complication after coronary artery bypass graft (CABG) that is associated with prolonged intensive care unit and hospital stay, and increased early and late morbidity and mortality. Patients with mediastinitis have an osteoporotic, fragile, and broken sternum. All foreign bodies as well as infected tissue should be removed. Osteomyelitis of sternum often perseveres after debridement for mediastinitis. In this report, we describe an unusual case of costochondritis caused by aspergillosis following off pump CABG surgery in a male patient in Yazd-Iran. https://acta.tums.ac.ir/index.php/acta/article/view/4371 https://acta.tums.ac.ir/index.php/acta/article/download/4371/4441