In pathology, the term tumour describes an abnormal growth of cells in the body. Normally, cells grow and divide in a controlled way. However, tumour cells multiply uncontrollably, forming a lump or mass. Tumours can develop anywhere in your body and can vary significantly in their appearance and behaviour. How are tumours categorized? Tumours are …
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A special stain is a specialized test pathologists use to examine tissue samples more closely. While the most common stain used by pathologists is called hematoxylin and eosin (H&E), sometimes additional details are needed that this standard stain cannot reveal. Special stains involve applying specific coloured dyes to tissue samples, highlighting particular cells, microorganisms, or …
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In pathology, a margin is the edge of a tissue that is cut when removing a tumour from the body. The margins described in a pathology report are very important because they tell you if the entire tumour was removed or if some of the tumour was left behind. The margin status will determine what …
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A resection is a surgical procedure performed to remove an area of abnormal tissue such as a tumour from the body. A resection usually removes all of the abnormal tissue plus some surrounding normal tissue. The tissue removed is called a specimen and the cut edge of the tissue is called the margin. This type …
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In pathology, a specimen is any sample taken from your body and sent to a laboratory for examination by a pathologist. Specimens can vary widely in size and type, from small samples of tissue to entire organs or even bodily fluids like blood or urine. Examining specimens is essential for diagnosing and understanding many different …
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A biopsy is a medical procedure in which a small piece of tissue or a sample of cells is removed from the body for examination under a microscope. Pathologists use biopsies to diagnose a wide range of conditions, including cancer, infections, and inflammatory diseases. Examining cells and tissues closely enables pathologists to detect changes that …
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