Background: Laryngeal amyloidosis is a rare condition in which an abnormal protein called amyloid builds up in the tissues of the larynx. This buildup can cause thickening and stiffness of the affected tissues, affecting the voice and breathing. Although amyloidosis can occur in other parts of the body, in laryngeal amyloidosis, the amyloid deposits are …
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Amyloid is an abnormal protein that folds into the wrong shape and accumulates in body tissues as dense, insoluble deposits. In healthy cells, proteins fold correctly and perform their normal functions. In some diseases, certain proteins misfold and clump together into a distinctive structure — one that the body cannot easily break down or clear …
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A plasma cell neoplasm is a group of related diseases that begin when plasma cells, a type of immune cell found in the bone marrow, start growing abnormally. Normal plasma cells make immunoglobulins (antibodies) that help the body fight infections. In a plasma cell neoplasm, one group of plasma cells grows more than it should …
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