White blood cells (WBCs), also called leukocytes, are an essential part of your body’s immune system. Their main job is to defend you against infections, combat harmful organisms such as bacteria, viruses, and parasites, and help regulate inflammation and allergic reactions. Unlike red blood cells, which carry oxygen throughout the body, white blood cells are …
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Hematopoiesis is the process by which the body produces new blood cells. The word comes from the Greek words “hema,” meaning blood, and “poiesis,” meaning formation. Hematopoiesis is essential for maintaining the body’s supply of red blood cells (RBCs), white blood cells (WBCs), and platelets, which are all crucial for carrying oxygen, fighting infections, and …
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Definition: Multinucleated giant cells are large cells that contain multiple nuclei. These cells are formed by the fusion of smaller cells, typically macrophages, which are immune cells involved in the body’s response to infection, inflammation, or foreign substances. Multinucleated giant cells are commonly seen in various inflammatory conditions and certain types of tumours. What do …
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A chondroid tumour is a type of growth or mass that contains tissue resembling cartilage. Cartilage is the firm, flexible tissue found in joints, the respiratory tract, and other body parts. Chondroid tumours can be benign (noncancerous) or malignant (cancerous). When is this term used in a pathology report? The term “chondroid tumour” is often …
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In pathology, chondroid refers to tissue that looks and behaves like cartilage. Cartilage is a firm, flexible tissue found in various body parts, such as the joints and respiratory tract. What does chondroid tissue look like under the microscope? Chondroid tissue appears glassy and smooth under the microscope and is made up of cells called …
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Laryngeal amyloidosis is an uncommon condition in which an abnormal protein called amyloid builds up in the tissues of the larynx, the voice box. The deposits make the affected tissue thicker and stiffer, which is why the condition usually affects the voice and, when the buildup is larger, breathing. It is found most often in …
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Ampullary adenocarcinoma is a type of cancer that starts in the ampulla of Vater, a small but important area where the bile duct and pancreatic duct join and empty into the first part of the small intestine (the duodenum). The inner lining of the ampulla is made up of gland-forming cells that help handle bile …
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Background: An ampullary adenoma is a non-cancerous growth that forms in the ampulla of Vater. The ampulla is a small opening where the bile and pancreatic ducts meet and empty their fluids into a part of the small intestine called the duodenum. These fluids help break down food during digestion. While an adenoma is benign …
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Lipoblasts are immature fat cells involved in the development of normal fat tissue. They are still growing and maturing but have not yet developed into fully formed fat cells, known as adipocytes. Lipoblasts play an important role in forming fat tissue in the body and can also be seen in some types of tumors. Where are …
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Comedonecrosis is a term pathologists use to describe a specific type of cell death (necrosis) found in certain cancers. It occurs when cancer cells in the center of a tumour grow rapidly but outgrow their blood supply. Without enough blood, oxygen, and nutrients, these cells die, forming an area of dead cells and debris. This …
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