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.
Overview of Onychomycosis. Onychomycosis is a fungal infection that causes fingernails or toenails to thicken, discolor, disfigure, and split. If the problem is caused by a bacterium, the condition is called paronychia. The nails of people with onychomycosis are initially a cosmetic concern.