medicine beginner 10 sample questions

Cancer Types MCQ Practice Test

Malignant growth classifications

Q1. A 35-year-old woman with a history of BRCA1 mutation is diagnosed with a type of breast cancer that is characterized by the absence of estrogen and progesterone receptors, and the presence of HER2 protein overexpression. Which of the following cancer types is most likely to be diagnosed in this patient?

A. Triple-negative breast cancer ✓
B. Luminal A breast cancer
C. HER2-positive breast cancer
D. Inflammatory breast cancer

Explanation: Triple-negative breast cancer is a subtype of breast cancer that lacks estrogen receptors, progesterone receptors, and excess HER2 protein. It is more common in women with a BRCA1 mutation and tends to have a poorer prognosis than other subtypes of breast cancer.

Q2. A 35-year-old woman is diagnosed with serous cystadenocarcinoma of the ovary. Which of the following histological subtypes is most commonly associated with this type of cancer?

A. Serous borderline tumors
B. Mucinous carcinoma
C. Clear cell carcinoma
D. Serous carcinoma ✓

Explanation: Serous carcinomas are the most common histological subtype associated with serous cystadenocarcinomas. Serous borderline tumors are a precursor, but not the most common subtype of the invasive cancer.

Q3. A 45-year-old male patient is diagnosed with a rare type of cancer that affects the pancreas and has a distinctive genetic mutation. Which of the following cancer types is most likely to be associated with this genetic mutation?

A. Pancreatic neuroendocrine tumor ✓
B. Pancreatic adenocarcinoma
C. Small cell carcinoma of the pancreas
D. Pancreatic mucinous cystic neoplasm

Explanation: Pancreatic neuroendocrine tumors (PNETs) are a type of cancer that can be associated with genetic mutations, including mutations in the MEN1 gene. MEN1 is a tumor suppressor gene that, when mutated, can lead to the development of PNETs. This type of cancer is often seen in patients with Multiple Endocrine Neoplasia type 1 (MEN1) syndrome.

Q4. A 45-year-old woman is diagnosed with a type of breast cancer that is characterized by the absence of estrogen receptors and the presence of a specific genetic mutation. Which of the following cancer types is most likely to be responsible for this diagnosis?

A. Triple-negative breast cancer ✓
B. Hormone receptor-positive breast cancer
C. HER2-positive breast cancer
D. Lobular breast cancer

Explanation: Triple-negative breast cancer is a subtype of breast cancer that lacks estrogen receptors, progesterone receptors, and excess HER2 protein. It is often associated with a specific genetic mutation and is more aggressive than other types of breast cancer.

Q5. A 35-year-old woman with a history of BRCA1 mutation presents with a palpable mass in her left breast. A core needle biopsy reveals a tumor with a high-grade neuroendocrine component. Which of the following cancer types is most likely?

A. Triple-negative breast cancer
B. Inflammatory breast cancer
C. Intraductal papilloma
D. Metaplastic triple-negative breast cancer with neuroendocrine differentiation ✓

Explanation: Metaplastic triple-negative breast cancer is a subtype of breast cancer that often presents with a high-grade neuroendocrine component, especially in BRCA1 mutation carriers. It is characterized by the presence of both epithelial and mesenchymal components, including neuroendocrine differentiation.

Q6. A 45-year-old female patient is diagnosed with a type of breast cancer that is estrogen receptor-positive and HER2-negative. Which of the following targeted therapies is most likely to be effective in treating her disease?

A. Trastuzumab
B. Lapatinib
C. Anastrozole ✓
D. Bevacizumab

Explanation: Anastrozole is an aromatase inhibitor that is effective in treating estrogen receptor-positive breast cancers. It works by reducing the levels of estrogen in the body, which can help slow the growth of cancer cells.

Q7. A 35-year-old woman is diagnosed with invasive lobular carcinoma, a subtype of breast cancer. Which of the following is a characteristic feature of this cancer type?

A. It is less likely to present as a palpable mass compared to invasive ductal carcinoma. ✓
B. It is more commonly associated with BRCA1 mutations.
C. It has a lower propensity for lymphatic spread compared to invasive ductal carcinoma.
D. It is more likely to be estrogen receptor-negative.

Explanation: Invasive lobular carcinoma (ILC) often presents differently than invasive ductal carcinoma (IDC). ILC tumors are more likely to be subtle and less easily felt as a distinct mass. They tend to grow in a single-file pattern, making them less likely to form a palpable lump. ILC is also more likely to be estrogen receptor-positive.

Q8. A 45-year-old female patient is diagnosed with a type of breast cancer that is estrogen receptor-positive and HER2-negative. Which of the following targeted therapies is most likely to be prescribed?

A. Trastuzumab
B. Anastrozole ✓
C. Pertuzumab
D. Bevacizumab

Explanation: Anastrozole is an aromatase inhibitor that is commonly used to treat estrogen receptor-positive breast cancer in postmenopausal women. It works by blocking the production of estrogen, which can fuel the growth of certain breast cancer cells.

Q9. A 45-year-old woman with stage III breast cancer is found to have a mutation in the BRCA1 gene. Which of the following treatments is most likely to be recommended for her?

A. Aromatase inhibitors are typically used as first-line therapy for hormone receptor-positive breast cancer.
B. Adjuvant chemotherapy with a taxane and an anthracycline is the standard of care for HER2-negative, triple-negative breast cancer.
C. Platinum-based chemotherapy is a common treatment option for ovarian cancer, but it is not typically used as a first-line treatment for breast cancer.
D. PARP inhibitors are a type of targeted therapy that are often used in combination with chemotherapy for metastatic breast cancer in patients with BRCA1 or BRCA2 mutations. ✓

Explanation: PARP inhibitors are a type of targeted therapy that are designed to specifically target cancer cells with BRCA1 or BRCA2 mutations. They work by inhibiting the enzyme PARP, which is involved in DNA repair. By inhibiting PARP, PARP inhibitors can help to slow or stop the growth of cancer cells.

Q10. A 35-year-old woman is diagnosed with a rare type of ovarian cancer that is characterized by the presence of small, round, blue cells. Which of the following cancer types is most likely to be diagnosed in this patient?

A. Mucinous adenocarcinoma
B. Small cell carcinoma ✓
C. Serous adenocarcinoma
D. Clear cell carcinoma

Explanation: Small cell carcinoma is a rare and aggressive type of ovarian cancer that is often characterized by the presence of small, round, blue cells. It is typically associated with a poor prognosis and is often treated with chemotherapy and targeted therapy.

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