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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Definition: 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 …
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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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In pathology, the term “amorphous” describes the appearance of material or tissue that lacks a defined shape or structure when viewed under a microscope. This term is used to characterize substances or cellular debris that do not have a recognizable cellular or tissue architecture, appearing as shapeless, unstructured masses. Amorphous material can be found in …
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In pathology, the term neuroendocrine differentiation refers to the presence of cells that show characteristics of both nerve cells (neurons) and hormone-producing (endocrine) cells. This means that the cells have features allowing them to produce, store, and release hormones, similar to how certain cells in the body’s nervous and endocrine systems operate. This trait can …
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In pathology, the term “blastoid” refers to cells that have features resembling immature precursor cells, known as blasts, which are typically found in the bone marrow. These cells are generally considered abnormal and can be indicative of aggressive and rapidly proliferating diseases, often seen in certain types of cancers. Microscopic features of blastoid cells Blastoid …
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In pathology, the term “blasts” refers to immature cells that are in the early stages of development into mature cells. These cells are typically found in the bone marrow, where they are part of the normal process of blood cell formation, known as hematopoiesis. Blasts can develop into various types of blood cells, such as …
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Cribriform morular thyroid carcinoma (CMTC) is a rare type of thyroid gland cancer. The thyroid is a butterfly-shaped gland in the neck that produces hormones important for metabolism. Cribriform morular thyroid carcinoma is unique due to its specific appearance under the microscope and its association with certain genetic conditions. What are the symptoms of cribriform …
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In pathology, the term malignant transformation describes the development of a malignant (cancerous) tumour from a benign (noncancerous) tumour or a precancerous disease. Malignant transformation is important because the cells in the malignant tumour can grow into nearby tissues and metastasize (spread) to distant organs such as lymph nodes and the lungs. Common conditions that …
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Dyskeratotic cells are squamous cells that have undergone premature or abnormal keratinization, a process by which cells produce and accumulate a protein called keratin. Under microscopic examination, these cells are smaller and pinker than normal squamous cells. Dyskeratotic cells can be seen in a variety of precancerous, cancerous, infectious, and inflammatory conditions. What conditions are …
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