B cells are a type of white blood cell that play a central role in the body’s immune system. Their primary role is to help protect you from infections by recognizing harmful substances, such as bacteria, viruses, and toxins, and responding to them. In humans, they develop and mature in the bone marrow. What do …
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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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Inflammatory cells are specialized types of white blood cells that migrate into tissues in response to changes, such as an injury, infection, or cancer. Their job is to protect you by fighting germs, removing damaged tissue, and aiding in the healing process. When a pathologist examines a tissue sample under the microscope, they may describe …
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