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.
Authors: Bin Cao, M.D., Julia A. McMillan, M.D. Microbiology. Mycoplasma pneumoniae is a Mollicute, a class of bacteria that lack a cell wall. The class includes organisms that are both commensals and pathogens for animals and plants, but the human is the only known host for M. pneumoniae.