 On August 10, 2011 Masoumi died from blood cancer from which he had been suffering since 2008.Despite this, Masoumi believed beforehand that he was cured of the disease.Masoumi had struggled to pay for his medical care and in November 2008, an exhibition game was played between Esteghlal and a "Selection of Karaj" team in order to raise money for the medical treatment of Masoumi and Mohammad Parsa.