Celiac disease is a condition where the body reacts abnormally to gluten, a protein found in wheat, barley, and rye. This reaction causes inflammation and damage to the lining of the small intestine. The damage is caused by immune cells called lymphocytes, which are found in increased numbers in the small intestine of people with …
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What is a solitary fibrous tumour? A solitary fibrous tumour (SFT) is a type of tumour that develops from cells normally found in connective tissue. Most behave as non-cancerous tumours but some can behave in an aggressive manner that is more similar to cancer. Your pathologist will carefully examine your tissue sample to look for …
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Adenoid cystic carcinoma is a type of cancer that most often starts in the salivary glands — the glands that make saliva. It has two unusual features. First, it tends to grow slowly but can come back many years after surgery. Second, it rarely spreads to lymph nodes, but it often spreads along nerves and …
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Dermatofibrosarcoma protuberans (DFSP) is a rare type of skin cancer that starts in the dermis — the thick middle layer of the skin. It belongs to a broader family of cancers called sarcomas, which arise from connective tissue (the supportive framework that gives the skin and other organs their shape and strength). DFSP most often …
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High grade squamous intraepithelial lesion (HSIL) is a precancerous condition of the cervix caused by infection with human papillomavirus (HPV). It is composed of squamous cells infected and altered by the virus. These abnormal cells are found in the transformation zone, the part of the cervix where glandular cells are gradually replaced by squamous cells. …
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Squamous cell carcinoma in situ of the oral cavity is a very early, non-invasive form of cancer in the lining of the mouth. The lining is made of flat cells called squamous cells, which sit in a thin surface layer called the epithelium. In squamous cell carcinoma in situ, these cells look severely abnormal throughout …
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Well differentiated liposarcoma is a type of sarcoma, which is a cancer that starts in connective tissues such as fat, muscle, or bone. In this tumor, the cancer cells come from fat cells (adipocytes). Under the microscope, the cells still resemble fat cells, but they appear more abnormal in size and shape than normal fat …
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Dedifferentiated liposarcoma is an aggressive type of sarcoma — a cancer that arises from fat cells. It is called dedifferentiated because it develops from within a less aggressive fatty tumor called well-differentiated liposarcoma (also known as atypical lipomatous tumor). During this transformation, a portion of the tumor’s fat cells are replaced by a completely different …
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Myxoid liposarcoma is a type of cancer that starts in fat cells. It is classified as a sarcoma — a cancer arising from the connective tissues of the body — and more specifically as a type of liposarcoma, meaning a sarcoma of fat tissue. Myxoid liposarcoma most commonly develops in the deep soft tissues of …
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What is an intramuscular lipoma? Intramuscular lipomas are non-cancerous tumours made up of fat. These tumours develop deep inside a muscle and they may feel like a lump. Often, intramuscular lipomas are not well separated from the surrounding normal muscle which can make it challenging for your surgeon to remove the tumour completely. What is …
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