Aggressive B cell lymphoma is a term used to describe a group of immune system cancers made up of cells called B cells. Although this is considered enough to establish a formal diagnosis, additional tests might be needed to refine how best to group or subclassify the disease. What types of B cell lymphoma are …
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What is an inflammatory myofibroblastic tumour? Inflammatory myofibroblastic tumour (IMT) is a rare type of tumour that typically behaves in a noncancerous manner. It can be found anywhere in the body including the abdomen, pelvis, urinary tract, digestive tract, female reproductive organs, head and neck, and lungs. Is inflammatory myofibroblastic tumour benign or malignant? Although …
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A pseudosarcomatous myofibroblastic proliferation is a non-cancerous growth that can develop after certain surgical procedures or manipulations. Although it may sometimes be mistaken for cancer under a microscope, this condition is entirely benign (non-cancerous). Other names for this condition include postoperative spindle cell nodule and pseudosarcomatous myofibroblastic neoplasm. Where are pseudosarcomatous myofibroblastic proliferations typically found? Pseudosarcomatous …
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A postoperative spindle cell nodule is a non-cancerous growth that can develop after certain surgical procedures or manipulations. Although it may sometimes be mistaken for cancer under a microscope, this condition is entirely benign (non-cancerous). Other names for this condition include pseudosarcomatous myofibroblastic proliferation and pseudosarcomatous myofibroblastic neoplasm. Where are postoperative spindle cell nodules typically …
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Extranodal NK/T cell lymphoma is a rare and aggressive cancer of the immune system. It starts in either natural killer (NK) cells or T cells — two closely related types of white blood cells that normally identify and destroy infected or abnormal cells. The word “extranodal” means that the lymphoma typically begins outside the lymph …
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What is a bile duct adenoma? A bile duct adenoma is a noncancerous type of tumour found in the liver. It is made up of bile ducts, small channels that help move bile and other substances out of the liver. What causes a bile duct adenoma? We do not know what causes a bile duct …
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Cholangiocarcinoma is a cancer that starts in the bile ducts — the network of small tubes that carries bile from the liver and gallbladder to the small intestine, where bile helps digest fats. It is sometimes called bile duct cancer. Cholangiocarcinoma can begin anywhere along this network, and where the cancer starts has an important …
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What is a perivascular epithelioid cell tumour? Perivascular epithelioid cell tumour (commonly referred to as a PEComa) is a relatively uncommon type of tumour made up of cells that are normally found on the outside of blood vessels. Another name for perivascular epithelioid cell tumour is angiomyolipoma (AML). Where in the body are perivascular epithelioid …
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Paget’s disease is a non-invasive type of breast cancer that involves the nipple and surrounding skin. It is considered non-invasive because the tumour cells are limited to a layer of the skin called the epidermis. Most tumours are believed to start in channels called ducts that run from the nipple to glands deep in the breast. …
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Polymorphous adenocarcinoma is a slow-growing type of cancer that starts in the salivary glands. Unlike most other salivary gland cancers, it almost always starts in one of the small minor salivary glands found in the lining of the mouth and throat — most often in the palate (the roof of the mouth). The word “polymorphous” …
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