What exactly is a heart attack? Most heart attacks happen when a clot in the coronary artery blocks the supply of blood and oxygen to the heart. Often this leads to an irregular heartbeat-called an arrhythmia-that causes a severe decrease in the pumping function of the heart.
Oncocytoma can be described as a tumor that is mainly constituted out of oncocytes. These are actually epithelial cells, containing excessive quantities of mitochondria. This excess leads to a cytoplasm that is acidophilic and granular.
In this article. Astrocytoma is a type of brain cancer that usually starts in the cerebrum, the largest part of your brain, but can also show up in the cerebellum (the back of the brain). Itâs more common in men than women and most often shows up after age 45.