"It's clearly something to respect and confront – but I've already faced obstacles," he writes. "I work closely with my doctors and have developed a treatment plan with a 90% success rate."
The treatment has already begun for the musician, but the band will have to cancel most of their tour dates in 2019. However, the first megacruise of 2019, described as "five days and nights of heavy metal decadence and debauchery," will leave always in October.
Mustaine was a member of Metallica from 1981 to 1983. He left to found Megadeth, which won 12 Grammy nominations and a Grammy Award in 2017 in the "Best Metal Performance" category of the title "Dystopia".
Mustaine said that despite his diagnosis, he and the rest of the group were still working on monitoring "Dystopia", which he "could not wait for everyone to hear".