Breast Imaging Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Breast Imaging. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Breast Imaging Indian Medical PG Question 1: Which of the following features on mammogram would suggest malignancy?
- A. Smooth borders
- B. Well defined lesion
- C. A mass of decreased density
- D. Areas of spiculated microcalcifications (Correct Answer)
Breast Imaging Explanation: ***Areas of spiculated microcalcifications***
- **Spiculated microcalcifications** are highly suspicious for malignancy due to their irregular shape, distribution, and association with rapid, uncontrolled cell growth.
- These calcifications often represent **necrotic cells** within rapidly growing tumors, which can deposit calcium.
*Smooth borders*
- **Smooth borders** typically indicate a benign lesion, such as a cyst or fibroadenoma, as they suggest gradual, uniform growth rather than invasive spread.
- Malignant lesions tend to have **irregular** or ill-defined borders due to their infiltrative nature.
*Well defined lesion*
- A **well-defined lesion** usually suggests a benign process, as it indicates a mass that is clearly demarcated from surrounding tissue and is likely encapsulated.
- Malignancies, conversely, often exhibit **indistinct or irregular margins** as they invade adjacent structures.
*A mass of decreased density*
- A mass of **decreased density** is generally considered a benign finding, often representing a **cyst** or an area of normal fatty tissue.
- Malignant tumors typically present as a **mass of increased density** due to their cellular proliferation and desmoplastic reaction.
Breast Imaging Indian Medical PG Question 2: Which of the following features suggests a malignant lesion on mammography?
- A. Macrocalcifications
- B. Microcalcifications (Correct Answer)
- C. Fat content
- D. Round well defined borders
Breast Imaging Explanation: ***Microcalcifications***
- **Fine, pleomorphic, branching, or linear calcifications** clustered together are highly suspicious for malignancy, particularly **ductal carcinoma in situ (DCIS)**.
- They represent calcium deposits within the ducts or stromal calcifications related to tumor cells.
*Macrocalcifications*
- These are **larger, coarser calcifications** (typically >0.5 mm) which are almost universally benign.
- They are often associated with benign conditions such as **fibroadenomas**, old trauma, or vascular calcifications.
*Fat content*
- Lesions predominantly composed of fat, such as **lipomas**, **oil cysts**, and **hamartomas**, are typically benign.
- The presence of fat within a lesion on mammography generally indicates a **benign process**.
*Round well defined borders*
- A **smooth, rounded, and well-circumscribed margin** on mammography is a strong indicator of a benign lesion.
- Malignant lesions typically have **irregular, spiculated, or ill-defined margins** due to invasive growth.
Breast Imaging Indian Medical PG Question 3: In which of the following situations is breast conservation surgery not indicated?
- A. SLE
- B. Large pendular breast
- C. Diffuse microcalcification
- D. All of the options (Correct Answer)
Breast Imaging Explanation: ***All of the options***
- All listed scenarios—**large pendular breast**, **SLE**, and **diffuse microcalcification**—represent situations where breast conservation surgery is generally contraindicated or challenging.
- Their presence often necessitates alternative treatment approaches, such as mastectomy, to achieve optimal oncologic and cosmetic outcomes.
*Large pendular breast*
- While not an absolute contraindication, a **very large or pendulous breast** can make it difficult to achieve a satisfactory cosmetic outcome after breast conservation surgery.
- The disproportionate breast size post-lumpectomy may lead to significant **asymmetry**, requiring further reconstructive procedures.
*SLE*
- Patients with **Systemic Lupus Erythematosus (SLE)** are at an increased risk of complications from radiation therapy, a mandatory component of breast conservation surgery.
- They tend to experience more severe and prolonged **acute and chronic skin reactions** to radiation, which can significantly impair healing and quality of life.
*Diffuse microcalcification*
- **Diffuse microcalcification** within the breast can indicate widespread in situ carcinoma (e.g., DCIS) or an invasive carcinoma with extensive intraductal component.
- In such cases, achieving **clear surgical margins** with breast conservation surgery can be challenging and often leads to multiple re-excisions or an increased risk of local recurrence.
Breast Imaging Indian Medical PG Question 4: Which one of the following is not a correct statement with reference to locally advanced carcinoma breast ?
- A. Patients are staged as T3 or T4 with any N, without distant metastasis (M0)
- B. It constitutes the bulk of patients of carcinoma breast in India
- C. Neoadjuvant chemotherapy downgrades the disease
- D. Radical Mastectomy is the treatment of choice (Correct Answer)
Breast Imaging Explanation: *Patients are staged as T3 or T4 with any N, without distant metastasis (M0)*
- **Locally advanced breast cancer (LABC)** is correctly defined as tumors that are **T3 or T4** or involve regional lymph nodes (**any N**) without distant metastasis (**M0**).
- This statement is **correct** regarding LABC staging criteria.
*It constitutes the bulk of patients of carcinoma breast in India*
- This statement is **correct**. In India, approximately **50-60% of breast cancer patients present with locally advanced disease** at the time of diagnosis.
- This is in stark contrast to Western countries where LABC represents less than 10% of cases.
- The high prevalence is attributed to lack of screening programs, delayed presentation, limited awareness, and socioeconomic factors.
*Neoadjuvant chemotherapy downgrades the disease*
- This statement is **correct**. **Neoadjuvant chemotherapy (NACT)** is a cornerstone of LABC management.
- NACT aims to **downstage** the tumor, making it more amenable to surgical resection and increasing the feasibility of breast-conserving surgery.
- It also provides early treatment of micrometastases and serves as an in vivo test of tumor chemosensitivity.
***Radical Mastectomy is the treatment of choice***
- This statement is **INCORRECT** and is the correct answer to this negation question.
- **Radical mastectomy (Halsted mastectomy)** involving removal of breast, pectoral muscles, and axillary nodes is **no longer the standard treatment** for LABC.
- Modern treatment involves a **multimodal approach**: neoadjuvant chemotherapy followed by **modified radical mastectomy (MRM)** or breast-conserving surgery with radiation therapy.
- MRM preserves the pectoral muscles, providing better functional and cosmetic outcomes while maintaining oncological safety.
Breast Imaging Indian Medical PG Question 5: Current gold standard to detect ductal carcinoma in situ breast is:
- A. Mammography (Correct Answer)
- B. CT/PET
- C. MRI
- D. USG
Breast Imaging Explanation: ***Mammography***
- **Mammography** is the gold standard for detecting **ductal carcinoma in situ (DCIS)**, often visible as microcalcifications.
- It plays a crucial role in early detection and has been a cornerstone of breast cancer screening for decades.
*CT/PET*
- **CT scans** are primarily used for evaluating tumor extent and metastasis, not for initial DCIS detection.
- **PET scans** are not routinely used for DCIS due to their lower resolution for subtle changes and higher false-negative rates for small lesions.
*MRI*
- While **MRI** is highly sensitive for breast cancer, its specificity for **DCIS** is lower, often leading to false positives.
- It is typically used as an adjunct to mammography for high-risk screening or for evaluating the extent of known cancer, not as a primary screening tool for DCIS.
*USG*
- **Ultrasound (USG)** is effective for evaluating palpable masses or specific areas of concern identified on mammography, but it is not sensitive enough to reliably detect **microcalcifications** characteristic of DCIS.
- It is often used to differentiate between solid and cystic lesions or guide biopsies, but not as a primary screening tool for DCIS.
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