Background: A borderline phyllodes tumour is a type of breast tumour that shows uncertain behaviour over time. While most borderline phyllodes will behave like a non-cancerous tumour over time, a small number will spread to other parts of the body in a manner more in keeping with a cancerous tumour. What are the symptoms of …
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Invasive mammary carcinoma is a diagnosis used to describe a cancerous tumour in the breast that has not been subclassified into a more specific type of breast cancer. Additional tests performed often result in the tumour being subclassified as invasive ductal carcinoma or invasive lobular carcinoma. Is invasive mammary carcinoma a type of breast cancer? …
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Background: Atypical lobular hyperplasia (ALH) of the breast is a benign (non-cancerous) condition characterized by an abnormal increase in the number of epithelial cells in the lobules of the breast. This condition involves cells that look different from normal cells but are not abnormal enough to be classified as cancer. Atypical lobular hyperplasia is considered …
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Background: Atypical ductal hyperplasia (ADH) is a precancerous condition in the breast. A person with this condition has a 3- to 5-fold increased risk of developing a type of breast cancer called invasive ductal carcinoma in their lifetime. This condition starts from cells normally found inside small spaces called ducts. Is atypical ductal hyperplasia a …
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Background: Columnar cell hyperplasia (CCH) is a non-cancerous condition in the breast where the normal cells are replaced by tall, thin cells. This change can only be seen when tissue from the breast is examined under the microscope by a pathologist. CCC is usually seen with another non-cancerous change called flat epithelial atypia. What are the …
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Background: Columnar cell change (CCC) is a common non-cancerous condition in the breast. In this condition, normal cells are replaced by tall, thin, columnar-shaped cells. A pathologist can only see this change when tissue from the breast is examined under the microscope. Columnar cell change often develops alongside another non-cancerous change in the breast called …
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Background; Usual ductal hyperplasia (UDH) is a benign (non-cancerous) condition that occurs in the ducts of the breast. It involves an increase in the number of cells lining the ducts. What are the symptoms of usual ductal hyperplasia? Most patients with UDH do not have any symptoms, and UDH alone cannot be seen when a …
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Background: A fibroadenoma is a non-cancerous type of breast tumour and the most common in women under 40. If removed completely, the tumour will not occur again. However, new fibroadenomas may develop in the same breast or the breast on the opposite side of the body. What are the symptoms of a fibroadenoma? Fibroadenomas are …
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Invasive lobular carcinoma is a type of breast cancer. Invasive lobular carcinoma commonly starts from a non-cancerous growth of abnormal breast cells called lobular carcinoma in situ (LCIS). LCIS can be present for months or years before turning into invasive lobular carcinoma. In addition, patients with a previous diagnosis of LCIS have a higher risk …
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Background: A complex sclerosing lesion (CSL), also known as a radial scar, is a non-cancerous growth characterized by an increased number of glands and ducts around a central scar. Although non-cancerous, CSL is associated with a small increased risk of developing breast cancer when compared to women without CSL. What are the symptoms of a …
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