What is sinonasal undifferentiated carcinoma? Sinonasal undifferentiated carcinoma (SNUC) is a type of cancer that starts from cells normally found on the inside of the nasal cavity and paranasal sinuses. This area of the body is called the sinonasal tract. Sinonasal undifferentiated carcinoma is an aggressive disease with a poor prognosis. Can sinonasal undifferentiated sinonasal carcinoma …
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What is serous tubal intraepithelial carcinoma (STIC)? Serous tubal intraepithelial carcinoma (STIC) is a non-invasive type of fallopian tube cancer. It develops from the cells that cover the inside surface of the fallopian tube. If left untreated, STIC can turn into an invasive type of cancer called high-grade serous carcinoma. Why is serous tubular intraepithelial …
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What is seminoma? Seminoma is the most common type of testicular cancer in adults. It is part of a group of cancers called germ cell tumours. What are germ cells? Germ cells are specialized cells that are normally found in the testicles. They are considered ‘primitive’ cells because they are capable of turning into almost …
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A sessile serrated polyp is a type of polyp — a small growth that develops on the inner lining of the colon or rectum. These polyps are not cancerous, but they are considered precancerous, which means they can develop into cancer over time if they are not removed. Most sessile serrated polyps are found during …
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Secretory endometrium is a term pathologists use to describe the changes seen in the endometrium during the second half of the menstrual cycle. It is a normal finding in women of reproductive age. Is secretory endometrium normal? Yes. Secretory endometrium is a normal finding in women of reproductive age. What is the function of secretory …
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Schwannoma is a benign (non-cancerous) tumour that develops from Schwann cells, specialized cells that normally wrap around and protect nerves. Schwannoma is part of a larger group of tumours called peripheral nerve sheath tumours, which arise from the cells that support and surround nerves. In a schwannoma, Schwann cells grow slowly and form a mass …
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What is seborrheic keratosis? Seborrheic keratosis (SK) is a non-cancerous growth that starts from the squamous cells in the epidermis on the surface of the skin. Seborrheic keratosis is a very common condition and is seen more often as people age. What does seborrheic keratosis look like? Without a microscope, seborrheic keratosis may look like …
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A trichilemmal cyst, also called a pilar cyst, is a non-cancerous growth that develops from a hair follicle in the skin. These cysts are very common and most often appear on the scalp, where they look like smooth, round bumps under the skin. Trichilemmal cysts can range in size from a few millimeters to several …
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Proliferative endometrium is a term pathologists use to describe the changes seen in the endometrium during the first half of the menstrual cycle. It is a normal finding in women of reproductive age. Does proliferative endometrium mean cancer? No. Proliferation is a noncancerous change in the endometrium. It is a normal change seen in women …
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Papillary lesion of the breast is a term pathologists use to describe a group of breast tumours that look similar when examined under the microscope. This group includes both non-cancerous tumours and cancers. Papillary lesion is a preliminary diagnosis. Typically, the entire tumour needs to be removed and examined before a final diagnosis can be …
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