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 a type of abnormal protein that can accumulate in tissues and organs. Unlike normal proteins, amyloid proteins fold into an unusual shape, forming clumps or fibrils that can interfere with the normal function of tissues and organs. What is the significance of finding amyloid in a tissue sample? The presence of amyloid in …
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A plasmacytoma is a tumor made up of plasma cells, a type of immune cell that lives in the bone marrow and makes antibodies (immunoglobulins) to help fight infections. In a plasmacytoma, these plasma cells grow abnormally and form a single tumor or mass. When the tumor forms inside a bone, it is called a …
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Medullary thyroid carcinoma is a rare type of thyroid cancer that starts in C cells, also called parafollicular cells, in the thyroid gland. The thyroid is a butterfly-shaped gland at the front of the neck that produces hormones regulating metabolism. Unlike most thyroid cancers, which originate in follicular cells that produce thyroid hormone, medullary thyroid …
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