Breast Surgery — MCQs

Breast Surgery Indian Medical PG Practice Questions and MCQs

Question 241: A 21-year-old unmarried woman presents with premenstrual breast fullness and pain. What is the most likely diagnosis?

A. Galactocele
B. Fibroadenosis (Correct Answer)
C. Fibroadenoma
D. Mastitis

Explanation: **Explanation:** **1. Why Fibroadenosis is the Correct Answer:** Fibroadenosis (also known as **Fibrocystic Change** or ANDI - Aberrations of Normal Development and Involution) is the most common cause of breast symptoms in young women. The hallmark of this condition is **cyclical mastalgia** (breast pain) and **premenstrual fullness/heaviness**. It is driven by an exaggerated response of the breast tissue to hormonal fluctuations (estrogen excess or progesterone deficiency) during the menstrual cycle. Symptoms typically peak just before menstruation and subside once the period begins. **2. Why Other Options are Incorrect:** * **Galactocele:** This is a milk-containing cyst that occurs in **lactating** women or shortly after weaning. It presents as a painless, fluctuant mass, not cyclical pain. * **Fibroadenoma:** Known as the "Breast Mouse," it is a painless, highly mobile, firm, and well-defined lump. While common in this age group, it does not typically present with cyclical premenstrual fullness or pain. * **Mastitis:** This is an inflammatory/infectious condition characterized by acute pain, redness, warmth, and systemic symptoms like fever. It is most commonly associated with breastfeeding (lactational mastitis). **3. Clinical Pearls for NEET-PG:** * **ANDI Classification:** Fibroadenosis is considered a physiological variation (ANDI) rather than a true disease. * **Management:** Reassurance is the first line. For severe pain, evening primrose oil (Gamma-linolenic acid) or Danazol (in refractory cases) may be used. * **Differential:** If the pain is non-cyclical and localized, always rule out a breast abscess or underlying malignancy (though rare in this age group). * **Key Buzzwords:** "Cyclical mastalgia," "Premenstrual heaviness," and "Lumpy-bumpy breast" all point toward Fibroadenosis.

Question 242: A 53-year-old waitress inquires about the implications of positive estrogen receptors (ER+) in an invasive carcinoma that was excised from her left breast. What should she be informed of?

A. Positive estrogen receptors are more often found in patients under 50 years of age.
B. If the receptors are positive, antiestrogen therapy is not indicated.
C. If the receptors are positive, the prognosis is more unfavorable.
D. Estrogen receptor (ER) and progesterone receptor (PR) status should be determined in all cases of breast carcinoma. (Correct Answer)

Explanation: **Explanation:** The determination of hormone receptor status is a fundamental step in the management of breast cancer. **1. Why Option D is Correct:** Estrogen receptor (ER) and progesterone receptor (PR) status, along with HER2/neu status, are mandatory for **all** invasive breast carcinomas. This is because these biomarkers are both **prognostic** (predicting the natural history of the disease) and **predictive** (predicting the response to specific therapies). Knowing the receptor status is essential to decide whether the patient will benefit from endocrine therapy (e.g., Tamoxifen or Aromatase Inhibitors). **2. Analysis of Incorrect Options:** * **Option A:** Incorrect. ER-positive tumors are actually **more common in postmenopausal women** (over age 50). Younger, premenopausal women are more likely to have ER-negative or "triple-negative" subtypes. * **Option B:** Incorrect. If receptors are positive, antiestrogen (endocrine) therapy is **strongly indicated**. It significantly reduces the risk of recurrence and mortality in ER+ patients. * **Option C:** Incorrect. ER positivity is generally associated with a **more favorable prognosis** compared to ER-negative tumors. These tumors are typically lower grade, slower-growing, and have a better short-term survival rate due to their responsiveness to hormonal treatment. **Clinical Pearls for NEET-PG:** * **Gold Standard Test:** Immunohistochemistry (IHC) is the standard method for determining ER/PR status. * **Allred Scoring:** A common system used by pathologists to quantify ER/PR expression based on the proportion of positive cells and intensity of staining. * **Luminal A Subtype:** Characterized by ER+, PR+, and HER2- status; it has the best prognosis among all molecular subtypes. * **Tamoxifen:** The drug of choice for ER+ breast cancer in premenopausal women; **Aromatase Inhibitors** (e.g., Anastrozole) are preferred in postmenopausal women.

Question 243: What is the management of cystic sarcoma phylloides in a young female?

A. Wide excision with a margin (Correct Answer)
B. Wide excision and chemotherapy
C. Wide excision and radiotherapy
D. Modified mastectomy

Explanation: **Explanation:** **Phyllodes Tumor (Cystic Sarcoma Phyllodes)** is a fibroepithelial tumor of the breast that resembles a giant fibroadenoma but carries a risk of malignancy. 1. **Why Option A is Correct:** The standard of care for Phyllodes tumor, regardless of whether it is benign, borderline, or malignant, is **Wide Local Excision (WLE)** with a clear margin of at least **1 cm**. This is because these tumors have a high propensity for local recurrence if the margins are involved. Since Phyllodes tumors spread via the bloodstream (hematogenous) rather than the lymphatic system, routine axillary lymph node dissection is not required. 2. **Why Other Options are Incorrect:** * **B & C (Chemo/Radiotherapy):** Phyllodes tumors are generally resistant to chemotherapy and radiotherapy. These modalities are reserved only for palliative care or rare, recurrent malignant cases; they are not part of the primary management. * **D (Modified Mastectomy):** This is overly aggressive for a young female. Simple mastectomy is only indicated if the tumor is so large that a 1 cm margin cannot be achieved without compromising the cosmetic outcome (tumor-to-breast ratio). **High-Yield Clinical Pearls for NEET-PG:** * **Leaf-like pattern:** The name "Phyllodes" comes from the Greek word for "leaf-like," referring to the characteristic histological appearance of stromal overgrowth. * **Age Group:** Typically presents in women aged 35–50 (older than the typical fibroadenoma age). * **Clinical Feature:** Rapidly enlarging, painless, mobile mass; may cause skin necrosis due to pressure, but rarely involves the nipple-areola complex. * **Metastasis:** If malignant, it most commonly spreads to the **Lungs**. * **Diagnosis:** Triple assessment is key, but Core Needle Biopsy is preferred over FNAC (FNAC cannot reliably distinguish between fibroadenoma and Phyllodes).

Question 244: Virchow's node is seen in which anatomical location?

A. Left supraclavicular fossa (Correct Answer)
B. Anterior mediastinum
C. Posterior triangle of neck
D. Inguinal region

Explanation: **Explanation:** **Virchow’s node** (also known as Troisier’s sign) refers to a palpable, firm, enlarged lymph node in the **left supraclavicular fossa**. **Why the Left Supraclavicular Fossa?** The anatomical basis for this location is the **Thoracic Duct**. The thoracic duct drains lymph from most of the body (abdomen, pelvis, and lower limbs) and ascends to empty into the junction of the left internal jugular and subclavian veins. Malignancies, most commonly **Gastric Adenocarcinoma**, can metastasize via the thoracic duct to these sentinel nodes. The presence of this node often indicates advanced, inoperable intra-abdominal malignancy. **Analysis of Incorrect Options:** * **Anterior mediastinum:** This area contains the thymus and lymph nodes that typically drain the heart, lungs, and thyroid; it is not the site for Virchow’s node. * **Posterior triangle of neck:** While the supraclavicular fossa is technically in the lower part of the neck, Virchow's node is specifically localized to the supraclavicular region (Level Vb) rather than the general posterior triangle. * **Inguinal region:** Enlargement here (e.g., Cloquet’s node) typically indicates pathology in the lower extremities, perineum, or anal canal. **Clinical Pearls for NEET-PG:** * **Troisier’s Sign:** The clinical finding of a palpable Virchow’s node. * **Sister Mary Joseph’s Nodule:** Periumbilical lymphadenopathy associated with metastatic intra-abdominal malignancy. * **Irish’s Node:** Left axillary lymph node enlargement associated with gastric cancer. * **Krukenberg Tumor:** Metastasis of gastric cancer to the ovaries. * **Differential:** While gastric cancer is the classic cause, Virchow’s node can also be seen in cancers of the pancreas, testis, and kidneys.

Question 245: Which of the following is a method for conservative treatment of breast cancer?

A. Treatment is based on the relative size of the breast tumor. (Correct Answer)
B. Radiotherapy is administered.
C. Chemotherapy is administered.
D. Surgery is considered the best modality of treatment.

Explanation: **Explanation:** Breast Conservative Treatment (BCT) aims to provide oncological safety equivalent to a mastectomy while preserving the aesthetic appearance of the breast. **Why Option A is Correct:** The primary determinant for choosing BCT over a mastectomy is the **tumor-to-breast size ratio**. A small tumor in a large breast is ideal for BCT as it allows for wide local excision with clear margins and a good cosmetic result. Conversely, a small tumor in a very small breast may require a mastectomy because removing the tumor with adequate margins would leave a significant deformity. **Analysis of Incorrect Options:** * **Option B & C:** While Radiotherapy (RT) and Chemotherapy are integral components of the multidisciplinary management of breast cancer, they are **adjuvant/neoadjuvant therapies**, not the "method" or "criteria" that defines the conservative surgical approach itself. Note: Post-operative RT is mandatory in BCT to reduce local recurrence. * **Option D:** Surgery is indeed a primary modality, but this statement is too broad. The question specifically asks about the *method/basis* for choosing the conservative approach (BCT) specifically. **High-Yield Clinical Pearls for NEET-PG:** * **Components of BCT:** Wide local excision (lumpectomy) + Axillary staging (SLNB/ALND) + Post-operative Radiotherapy. * **Absolute Contraindications for BCT:** 1. Multicentric disease (tumors in different quadrants). 2. Prior radiation to the breast/chest wall. 3. Pregnancy (RT is contraindicated, though BCT can sometimes be done in the 3rd trimester with delayed RT). 4. Persistent positive margins after re-excision. 5. Diffuse malignant-appearing microcalcifications on mammography. * **Relative Contraindication:** Connective tissue diseases (e.g., Scleroderma) due to poor tolerance of radiotherapy.

Question 246: What is the most common site of bone metastasis?

A. Carcinoma of the kidney
B. Carcinoma of the breast (Correct Answer)
C. Carcinoma of the prostate
D. Carcinoma of the thyroid

Explanation: **Explanation:** The correct answer is **Carcinoma of the Breast**. **Why Breast Carcinoma is Correct:** In clinical practice, **Carcinoma of the Breast** is the most common primary malignancy to metastasize to the bone. This is due to its high overall prevalence in the population and its long natural history, which provides a larger window for hematogenous spread. Breast cancer cells have a high affinity for the bone marrow microenvironment (osteotropism), frequently resulting in **mixed lesions** (both osteoblastic and osteolytic). **Analysis of Incorrect Options:** * **Carcinoma of the Prostate:** While this is the most common cause of bone metastasis in **men**, it ranks second to breast cancer when considering the general population. It characteristically produces **osteoblastic** (sclerotic) lesions. * **Carcinoma of the Kidney (RCC):** RCC frequently metastasizes to the bone, but it is less common than breast or prostate. It typically presents as **purely osteolytic**, expansile, and highly vascular ("pulsatile") lesions. * **Carcinoma of the Thyroid:** Specifically follicular thyroid cancer spreads hematogenously to the bone, but its overall incidence is much lower than breast cancer. **NEET-PG High-Yield Pearls:** * **Most common site of bone metastasis:** Spine (specifically the lumbar spine), followed by the pelvis and femur. * **Route of spread:** Most commonly via the **Batson’s venous plexus** (a valveless vertebral venous system), which explains the high frequency of spinal involvement. * **Type of Lesion:** * **Purely Osteolytic:** Kidney, Thyroid, Lung (NSCLC). * **Purely Osteoblastic:** Prostate, Carcinoid, Small cell lung cancer. * **Mixed:** Breast (most common). * **Investigation of Choice:** **99mTc-MDP Bone Scan** is the most sensitive screening tool (except for purely lytic lesions like Multiple Myeloma, where X-rays or MRI are preferred).

Question 247: Which of the following is NOT true about papillary carcinoma of the breast?

A. It typically presents in the seventh decade of life.
B. It is typically a large tumor. (Correct Answer)
C. It has a low frequency of axillary lymph node metastases.
D. None of the above.

Explanation: **Explanation:** Papillary carcinoma of the breast is a rare subtype of invasive ductal carcinoma, accounting for approximately 1–2% of all breast cancers. **Why Option B is the correct answer (The False Statement):** Contrary to many other invasive breast malignancies, papillary carcinoma is typically a **small tumor**, often measuring less than 2–3 cm at the time of diagnosis. While it can occasionally present as a large cystic mass (intracystic papillary carcinoma), the classic invasive form is characterized by its small size and slow growth rate. **Analysis of other options:** * **Option A (True):** This carcinoma predominantly affects postmenopausal women, with a peak incidence in the **seventh decade** (60–70 years). This is older than the average age for standard infiltrating ductal carcinoma (NOS). * **Option C (True):** One of the hallmark features of papillary carcinoma is its **indolent nature**. It has a significantly lower frequency of axillary lymph node involvement compared to other invasive types, contributing to its excellent overall prognosis. **NEET-PG High-Yield Pearls:** * **Clinical Presentation:** Often presents as a subareolar mass; may be associated with bloody nipple discharge (though more common in benign intraductal papillomas). * **Histology:** Characterized by finger-like projections (papillae) with fibrovascular cores lined by epithelial cells. A key diagnostic feature is the **absence of a myoepithelial layer** within the papillae. * **Prognosis:** It carries one of the best prognoses among breast cancers, with a 10-year survival rate exceeding 90%. * **Triple Negative Status:** It is frequently Estrogen Receptor (ER) and Progesterone Receptor (PR) positive, further contributing to its favorable outcome.

Question 248: Which of the following are hormonal therapies used in breast cancer?

A. Danazol
B. Cyproterone acetate
C. Tamoxifen
D. LHRH analogue (Correct Answer)

Explanation: **Explanation:** Hormonal therapy (Endocrine therapy) in breast cancer aims to reduce estrogen levels or block estrogen receptors, as many breast tumors are hormone-receptor-positive (ER/PR+). **Why LHRH Analogues are correct:** LHRH (Luteinizing Hormone-Releasing Hormone) analogues, such as **Goserelin** and **Leuprolide**, act on the pituitary gland. Continuous administration leads to down-regulation of GnRH receptors, resulting in a decrease in LH and FSH. This causes "medical oophorectomy" (suppression of ovarian estrogen production), making it a standard treatment for premenopausal women with hormone-sensitive breast cancer. **Analysis of Incorrect Options:** * **A. Danazol:** An ethisterone derivative with weak androgenic properties. It is primarily used in the treatment of **fibrocystic breast disease** and endometriosis, not as a standard treatment for breast cancer. * **B. Cyproterone acetate:** An anti-androgen used primarily in the management of **prostate cancer** or hirsutism; it has no role in breast cancer therapy. * **C. Tamoxifen:** While Tamoxifen is a cornerstone of breast cancer treatment (a SERM), in the context of multiple-choice questions where only one "best" answer is marked correct by the examiner (as per the provided key), LHRH analogues represent a specific class of systemic hormonal manipulation. *Note: In many clinical scenarios, both C and D are correct; however, if forced to choose based on specific exam keys, LHRH analogues are often highlighted for their systemic suppressive role.* **High-Yield Clinical Pearls for NEET-PG:** * **Tamoxifen:** The drug of choice for ER+ breast cancer in **premenopausal** women. It increases the risk of endometrial carcinoma and thromboembolism. * **Aromatase Inhibitors (Anastrozole/Letrozole):** The drug of choice for **postmenopausal** women. * **Triple Negative Breast Cancer (TNBC):** Defined as ER, PR, and HER2/neu negative; it does **not** respond to hormonal therapy or Trastuzumab. * **Trastuzumab (Herceptin):** A monoclonal antibody used specifically for HER2/neu positive cases.

Question 249: Which structures are preserved in a Modified radical mastectomy?

A. Axillary vein
B. Pectoralis major muscle
C. Nerves to serratus anterior
D. All of the above (Correct Answer)

Explanation: In **Modified Radical Mastectomy (MRM)**, the goal is to remove the entire breast tissue along with the axillary lymph nodes (Levels I and II) while preserving specific vital structures to maintain function and reduce morbidity. This distinguishes it from the Halsted Radical Mastectomy, which is now largely obsolete. **Explanation of Options:** * **Pectoralis major muscle (Option B):** In MRM (specifically the Patey or Auchincloss modifications), the pectoralis major is preserved. This maintains the chest wall contour and provides a muscular base for future breast reconstruction. * **Axillary vein (Option A):** This is the superior boundary of the axillary dissection. It must be preserved to ensure venous drainage of the upper limb; accidental ligation leads to severe lymphedema. * **Nerves to serratus anterior (Option C):** Also known as the **Long Thoracic Nerve of Bell**. Preserving this nerve is crucial to prevent "Winging of the Scapula." **High-Yield Clinical Pearls for NEET-PG:** 1. **Nerves to preserve:** * **Long Thoracic Nerve:** Supplies Serratus Anterior (Injury = Winging of Scapula). * **Thoracodorsal Nerve:** Supplies Latissimus Dorsi (Injury = Weakness in internal rotation/adduction). 2. **Nerve often sacrificed:** The **Intercostobrachial nerve** is frequently cut, leading to numbness in the skin of the medial aspect of the upper arm. 3. **Modifications:** * **Auchincloss:** Preserves both Pectoralis major and minor. * **Patey:** Preserves Pectoralis major but removes Pectoralis minor to access Level III nodes. 4. **Boundaries of Axillary Dissection:** Axillary vein (superior), Latissimus dorsi (lateral), and Serratus anterior (medial).

Question 250: What is true about the lymphatic spread of breast cancer?

A. Axillary lymph nodes are most commonly involved.
B. Internal mammary lymph nodes can also be involved.
C. Spread to supraclavicular lymph nodes can occur by lymphatic embolization.
D. All of the above. (Correct Answer)

Explanation: The lymphatic drainage of the breast is a critical concept in surgical oncology, as it dictates the staging and surgical management of breast cancer. **Explanation of the Correct Answer:** The correct answer is **D (All of the above)** because breast cancer follows predictable yet multi-directional lymphatic pathways: * **Option A:** Approximately **75% of the lymph** from the breast drains into the **axillary lymph nodes**. Consequently, they are the most common site of regional metastasis. * **Option B:** The remaining **25% of lymph** (primarily from the medial and deep quadrants) drains into the **internal mammary lymph nodes** located along the sternal border. Involvement here is significant for prognosis and radiotherapy planning. * **Option C:** Lymphatic spread to the **supraclavicular nodes** usually occurs after the involvement of axillary nodes (Level III) or via the internal mammary chain. This occurs through **lymphatic embolization**, where tumor cells travel as "emboli" through the vessels. **Clinical Pearls for NEET-PG:** * **Berg’s Levels of Axillary Nodes:** Defined by their relation to the **Pectoralis Minor** muscle: * *Level I:* Lateral to the muscle. * *Level II:* Behind the muscle (includes Rotter’s nodes). * *Level III:* Medial/Superior to the muscle. * **Sentinel Lymph Node Biopsy (SLNB):** The gold standard for axillary staging in clinically node-negative (cN0) patients. * **Rotter’s Nodes:** Interpectoral nodes located between the pectoralis major and minor muscles. * **Staging Note:** Involvement of supraclavicular nodes is classified as **N3** (Regional) in the AJCC 8th edition, not distant metastasis (M1).

Practice by Chapter

Breast Anatomy and Physiology

Practice Questions

Benign Breast Diseases

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Breast Cancer Screening

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Breast Cancer: Diagnosis and Staging

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Surgical Management of Breast Cancer

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Oncoplastic Breast Surgery

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Sentinel Lymph Node Biopsy

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Axillary Surgery

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Breast Reconstruction Techniques

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Male Breast Disorders

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Phyllodes Tumors

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Management of Ductal Carcinoma In Situ

Practice Questions

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