Gangrenectomy is an Italian slam death metal band from Catania, Sicily. They were by formed by vocalist Gabriele Catania, guitarist Riccardo Cantarella and bassist Alberto Destasio in 2009. They did not have a drummer during the band's formation, so Catania and Cantarella handle drum programming duties. The band writes about subject matters that include madness, depravity, disease and gore. They released one demo entitled Decaying Thoughts of Insane Mentality in 2010 and then an EP entitled Feces of the Gods in 2011.