👉 A discoblastula is a type of cancer that affects the lining of the heart, causing pain and discomfort. It is a rare form of cancer that occurs in the heart muscle, particularly in the right ventricle (the left side of the heart). The disease can be caused by a mutation in the gene responsible for dividing cells called cyclin D1. Discoblastula is an early stage of the disease, and it usually progresses slowly over time. If left untreated, discob