Podcast
Questions and Answers
What is the primary distinction between invasive and non-invasive breast cancer?
What is the primary distinction between invasive and non-invasive breast cancer?
What percentage of breast cancers are invasive ductal carcinomas (IDC)?
What percentage of breast cancers are invasive ductal carcinomas (IDC)?
Invasive lobular carcinoma (ILC) accounts for what percentage of invasive breast cancers?
Invasive lobular carcinoma (ILC) accounts for what percentage of invasive breast cancers?
Which type of breast cancer starts in the lobules?
Which type of breast cancer starts in the lobules?
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What is one common feature that can help determine the type of breast cancer?
What is one common feature that can help determine the type of breast cancer?
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Which of the following statements about invasive breast cancer is true?
Which of the following statements about invasive breast cancer is true?
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What is one key factor that influences how breast cancer behaves?
What is one key factor that influences how breast cancer behaves?
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Where does invasive ductal carcinoma (IDC) typically begin?
Where does invasive ductal carcinoma (IDC) typically begin?
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What percentage of invasive breast cancers are classified as triple-negative?
What percentage of invasive breast cancers are classified as triple-negative?
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Which type of breast cancer has too many HER2 proteins and tests positive for estrogen and progesterone receptors?
Which type of breast cancer has too many HER2 proteins and tests positive for estrogen and progesterone receptors?
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Micrometastases in lymph nodes indicate what about breast cancer?
Micrometastases in lymph nodes indicate what about breast cancer?
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What is the definition of metastatic breast cancer?
What is the definition of metastatic breast cancer?
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What type of breast cancer is known for being rare and aggressive, representing about 1% of all breast cancers?
What type of breast cancer is known for being rare and aggressive, representing about 1% of all breast cancers?
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What does the term 'de novo metastatic breast cancer' refer to?
What does the term 'de novo metastatic breast cancer' refer to?
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What does local recurrence in breast cancer signify?
What does local recurrence in breast cancer signify?
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Which of the following statements regarding male breast cancer is accurate?
Which of the following statements regarding male breast cancer is accurate?
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What percentage of all breast cancers are diagnosed in men?
What percentage of all breast cancers are diagnosed in men?
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Which of the following is considered a precursor to invasive breast cancer?
Which of the following is considered a precursor to invasive breast cancer?
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What is the primary characteristic of non-invasive breast cancer?
What is the primary characteristic of non-invasive breast cancer?
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What type of non-invasive breast cancer has not spread outside the lobules?
What type of non-invasive breast cancer has not spread outside the lobules?
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Which statement about Paget disease of the breast is true?
Which statement about Paget disease of the breast is true?
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What is true about phyllodes tumors of the breast?
What is true about phyllodes tumors of the breast?
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What do lobular carcinoma in situ (LCIS) and ductal carcinoma in situ (DCIS) have in common?
What do lobular carcinoma in situ (LCIS) and ductal carcinoma in situ (DCIS) have in common?
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How does the molecular subtype of a breast cancer affect treatment?
How does the molecular subtype of a breast cancer affect treatment?
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Study Notes
Types of Breast Cancer
- Breast cancer varies based on location of origin, growth, spread, and characteristics influencing behavior.
- Understanding the type helps in choosing appropriate treatment options.
- Different types include invasive vs. non-invasive, molecular subtypes, male breast cancer, and phyllodes tumors.
Invasive vs. Non-invasive Breast Cancer
- Invasive cancer spreads beyond the milk ducts or lobules where it started.
- Non-invasive cancer remains within the breast tissue.
- Pathology reports detail if cancer has spread from original location.
Types of Invasive Breast Cancer
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Invasive Ductal Carcinoma (IDC): Most common type, originates in milk ducts (tubes carrying milk from lobules to nipple). Accounts for about 80% of all invasive breast cancers.
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Invasive Lobular Carcinoma (ILC): Second most common, originates in lobules (milk-producing glands). Accounts for about 10% of all invasive breast cancers.
Features Affecting Invasive Breast Cancer
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Triple-Negative Breast Cancer: Aggressive type, tests negative for estrogen and progesterone receptors, and lacks extra HER2 proteins. About 12% of invasive breast cancers.
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Triple-Positive Breast Cancer: Tests positive for estrogen and progesterone receptors and has higher than typical HER2 proteins. About 10% of all invasive breast cancers.
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Inflammatory Breast Cancer: Rare and aggressive form. About 1% of all breast cancers in the United States.
Other Breast Cancer Types
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Micrometastases: Tiny groups of breast cancer cells that have spread to other areas of the body, usually lymph nodes. Higher risk of spread and may require specialized treatments.
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Metastatic Breast Cancer (Stage IV): Cancer has spread from the breast to other parts of the body (bones, liver, lungs, brain). May recur months or years after initial treatment.
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Recurrent Breast Cancer: Cancer returns in the same breast or other areas after treatment. May be local, regional (nearby lymph nodes), or distant (metastatic).
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Male Breast Cancer: Rare; less than 1% of cases. Predominantly invasive ductal carcinomas.
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Paget Disease of the Breast: Rare, cancer cells collect in or around the nipple.
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Non-invasive Breast Cancer: Means cancer has not spread beyond the initial breast tissue.
- Ductal Carcinoma In Situ (DCIS): Non-invasive, in milk ducts, not life-threatening but a risk factor for invasive cancer. About 16% of all breast cancer diagnoses.
- Lobular Carcinoma In Situ (LCIS): Non-invasive, in lobules. Benign, not a true breast cancer.
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Phyllodes Tumors: Rare tumors of the breast. Mostly benign but about 25% are cancerous.
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Description
Test your knowledge on the various types of breast cancer, including invasive and non-invasive forms. This quiz will cover their origins, differences, and characteristics that influence treatment options. Understand the significance of pathology reports and the common types of invasive breast cancers.
