Breast Surgery — MCQs

What is the method of breast examination depicted in the video? The clinician was palpating with the tips of fingers, except the thumb, starting from the 2 o'clock position posteriorly and palpating at 3 points on a line joining the periphery to the nipple. Then, the clinician returned to the 3 o'clock position directly and came back to the center while palpating at 3 points again on the line joining the periphery and the nipple.

Q327Easy

What is the standard treatment for cystosarcoma phyllodes?

Q328Easy

Estrogen receptor activity is clinically useful in predicting:

Q329Medium

A 40-year-old female presents with a 2 cm breast nodule and a proven metastatic axillary lymph node. What is the recommended treatment?

Q330Easy

What is the treatment for Paget's disease of the nipple?

Breast Surgery Indian Medical PG Practice Questions and MCQs

Question 321: Breast examination is done yearly in patients with which of the following conditions?

A. Multiple fibroadenoma
B. Family history of breast cancer (Correct Answer)
C. Carcinoma cervix
D. Endometrial carcinoma

Explanation: **Explanation:** The correct answer is **Family history of breast cancer**. **1. Why Family History is Correct:** Family history is one of the most significant non-modifiable risk factors for breast cancer. Women with a first-degree relative (mother, sister, or daughter) diagnosed with breast cancer have approximately double the risk compared to the general population. Clinical guidelines (such as those from the ACS and NCCN) recommend regular clinical breast examination (CBE) and screening mammography (usually starting at age 40, or earlier depending on the specific risk profile) to ensure early detection, as these patients are in a high-risk category. **2. Why Other Options are Incorrect:** * **Multiple Fibroadenoma:** Fibroadenomas are benign "breast mice." Simple fibroadenomas do not significantly increase the risk of malignancy. While they require initial diagnosis, they do not mandate a specific lifelong yearly surveillance protocol unless they show complex features. * **Carcinoma Cervix:** Cervical cancer is primarily associated with Human Papillomavirus (HPV) infection. There is no direct pathophysiological link or shared genetic syndrome that necessitates increased breast cancer screening for these patients. * **Endometrial Carcinoma:** While both breast and endometrial cancers are estrogen-dependent, the presence of endometrial cancer alone does not dictate yearly breast exams unless it is part of a specific genetic syndrome like **Cowden Syndrome** (PTEN mutation) or **Lynch Syndrome** (though Lynch is more strongly associated with ovarian/colon). **Clinical Pearls for NEET-PG:** * **Gail Model:** Used to estimate the 5-year and lifetime risk of developing invasive breast cancer. * **BRCA1/BRCA2:** Mutations significantly increase risk; screening for these carriers often starts as early as age 25 with annual MRI. * **Triple Assessment:** The gold standard for breast lump evaluation (Clinical exam + Imaging + Histopathology/Cytology). * **Most common site:** The Upper Outer Quadrant is the most frequent site for breast cancer.

Question 322: A 45-year-old premenopausal woman undergoes a left breast lumpectomy for a 1.5 cm, lymph node positive, hormone sensitive invasive breast cancer. She receives chemotherapy, radiotherapy, and is on tamoxifen. What is the recommended follow-up after therapy?

A. Blood tumor markers drawn every 3-6 months after treatment.
B. Routine monitoring of liver function tests (LFTs) every 3-6 months after treatment.
C. Yearly bone scans.
D. Routine clinical examination every 3-6 months for the first 5 years after treatment as well as continued yearly mammography. (Correct Answer)

Explanation: The primary goal of post-treatment surveillance in breast cancer is the early detection of local recurrence or a new primary breast cancer, as these are potentially curable. ### **Explanation of the Correct Answer** According to **ASCO and NCCN guidelines**, the standard follow-up for a patient who has completed primary treatment (surgery, chemotherapy, and radiotherapy) includes: 1. **Clinical Examination:** Every 3–6 months for the first 3 years, every 6–12 months for the next 2 years, and annually thereafter. This is crucial for detecting local/regional recurrence. 2. **Mammography:** The first post-treatment mammogram should be performed 6–12 months after radiotherapy (or surgery), followed by **yearly mammography** indefinitely. ### **Why Other Options are Incorrect** * **Option A & B:** Routine use of **blood tumor markers** (like CA 15-3 or CEA) and **Liver Function Tests (LFTs)** is **not recommended** for asymptomatic patients. They lack sensitivity and specificity for early detection of metastasis and do not improve survival outcomes. * **Option C:** **Yearly bone scans** (or any routine imaging like CT/PET scans) are not indicated in asymptomatic patients. These are only performed if the patient develops specific symptoms (e.g., bone pain) or if there is clinical evidence of recurrence. ### **High-Yield Clinical Pearls for NEET-PG** * **Tamoxifen Monitoring:** Patients on Tamoxifen (like this patient) should have an annual **gynecological examination** to monitor for endometrial hyperplasia/cancer, but routine pelvic ultrasounds are not required unless abnormal bleeding occurs. * **Breast Self-Examination (BSE):** Patients should be encouraged to perform monthly BSE to remain "breast aware." * **Survival Benefit:** Only clinical follow-up and mammography have been proven to provide a survival benefit in the surveillance phase; intensive systemic imaging does not.

Question 323: Which of the following statements regarding the Oncotype DX test is true?

A. Used for hormone receptor-negative cancers
B. It is a 21-gene assay (Correct Answer)
C. Predicts the benefit of adjuvant hormonal therapy
D. Used for lymph node-positive cancers

Explanation: **Explanation:** The **Oncotype DX** is a genomic test used primarily in early-stage breast cancer to guide the decision regarding adjuvant chemotherapy. **1. Why Option B is correct:** Oncotype DX is a **21-gene expression assay** (16 cancer-related genes and 5 reference genes). It uses reverse-transcriptase polymerase chain reaction (RT-PCR) on paraffin-embedded tumor tissue to calculate a **Recurrence Score (RS)** ranging from 0 to 100. This score quantifies the risk of distant recurrence at 10 years. **2. Why the other options are incorrect:** * **Option A:** It is specifically indicated for **Hormone Receptor-positive (ER/PR+), HER2-negative** cancers. It is not used for triple-negative or HER2-positive cancers. * **Option C:** While it predicts the risk of recurrence, its primary clinical utility is predicting the **benefit of adjuvant chemotherapy**, not hormonal therapy (hormonal therapy is generally indicated for all ER+ patients). * **Option D:** Traditionally, it is used for **Lymph Node-negative** disease. While its use has expanded to some post-menopausal patients with 1–3 positive nodes (based on the RxPONDER trial), its classic and most high-yield indication for exams remains node-negative disease. **Clinical Pearls for NEET-PG:** * **TAILORx Trial:** This landmark study established that patients with an RS of 0–25 generally do not benefit from chemotherapy and can be treated with endocrine therapy alone. * **MammaPrint:** Another genomic test, but it is a **70-gene assay** (uses microarray). * **Indication Summary:** Early-stage, ER+, HER2-, Node-negative breast cancer.

Question 324: Paresthesia following MRM (Modified Radical Mastectomy) develops due to involvement of which nerve?

A. Long thoracic nerve
B. Medial pectoral nerve
C. Medial cutaneous nerve of arm (Correct Answer)
D. Thoracodorsal nerve

Explanation: ### Explanation **1. Why the Correct Answer is Right:** During a Modified Radical Mastectomy (MRM), specifically during **axillary lymph node dissection (ALND)**, the **intercostobrachial nerve** (the lateral cutaneous branch of the second intercostal nerve) is frequently encountered. This nerve communicates with the **medial cutaneous nerve of the arm**. Injury, traction, or intentional sacrifice of these sensory fibers leads to postoperative **paresthesia, numbness, or chronic pain** along the posteromedial aspect of the upper arm and axilla. This is the most common sensory complication following MRM. **2. Why the Other Options are Incorrect:** * **A. Long Thoracic Nerve (Nerve of Bell):** This is a motor nerve supplying the **Serratus Anterior**. Injury leads to **"Winging of Scapula"** and inability to abduct the arm above 90 degrees, not sensory paresthesia. * **B. Medial Pectoral Nerve:** This is a motor nerve supplying the **Pectoralis Major and Minor**. Injury leads to atrophy of these muscles. * **D. Thoracodorsal Nerve:** This is a motor nerve supplying the **Latissimus Dorsi**. Injury leads to weakness in internal rotation, adduction, and extension of the arm (difficulty in "climbing" or "scratching the back"). **3. Clinical Pearls for NEET-PG:** * **Most commonly injured nerve in MRM:** Intercostobrachial nerve (causing sensory loss). * **Nerve most commonly preserved in MRM:** Long thoracic and Thoracodorsal nerves (to maintain shoulder function). * **Nerve of Bell (Long Thoracic):** Runs on the medial wall of the axilla (over the serratus anterior). * **Thoracodorsal Nerve:** Runs in the posterior wall of the axilla (with the subscapular vessels). * **Halsted’s Sign:** Loss of the pectoral fold due to injury to the pectoral nerves.

Question 325: Galactorrhea, a milky discharge from the nipple in nonpregnant women, is most likely to be associated with which of the following?

A. Fibroadenoma
B. Tubular adenoma
C. Pituitary adenoma (Correct Answer)
D. Hyperparathyroidism

Explanation: **Explanation:** **1. Why Pituitary Adenoma is Correct:** Galactorrhea is defined as the spontaneous flow of milk from the nipple that is not associated with childbirth or nursing. The physiological production of milk is governed by the hormone **Prolactin**, secreted by the anterior pituitary gland. A **Prolactinoma** (a type of pituitary adenoma) is the most common pathological cause of galactorrhea. It leads to hyperprolactinemia, which stimulates the mammary glandular tissue to produce milk. In clinical practice, any patient with bilateral milky discharge should be evaluated for serum prolactin levels and potential pituitary pathology. **2. Why Other Options are Incorrect:** * **A. Fibroadenoma:** This is a benign "breast mouse" (solid tumor) arising from the terminal duct lobular unit. It typically presents as a painless, mobile lump and is not associated with nipple discharge. * **B. Tubular Adenoma:** A rare benign variant of fibroadenoma, usually seen in young women. While it is a true neoplasm of the breast epithelium, it does not cause systemic hormonal changes or galactorrhea. * **C. Hyperparathyroidism:** This condition involves excess Parathyroid Hormone (PTH), leading to hypercalcemia ("stones, bones, abdominal groans, and psychic overtones"). It has no direct physiological link to prolactin secretion or lactation. **3. NEET-PG High-Yield Pearls:** * **Drug-induced Galactorrhea:** Always rule out drugs that deplete dopamine (e.g., Metoclopramide, Haloperidol, Methyldopa), as dopamine is the natural inhibitor of prolactin. * **Diagnostic Workup:** The first step in evaluating galactorrhea is a **Serum Prolactin level**. If elevated, the next step is an **MRI of the Sella Turcica**. * **Treatment:** Medical management with Dopamine agonists (**Cabergoline** or Bromocriptine) is the first-line treatment for prolactinomas, not surgery. * **Bloody Discharge:** If the discharge is bloody and unilateral, the most common cause is an **Intraductal Papilloma**.

Question 326: What is the method of breast examination depicted in the video? The clinician was palpating with the tips of fingers, except the thumb, starting from the 2 o'clock position posteriorly and palpating at 3 points on a line joining the periphery to the nipple. Then, the clinician returned to the 3 o'clock position directly and came back to the center while palpating at 3 points again on the line joining the periphery and the nipple.

A. Vertical strip method
B. Concentric method
C. Clockwise method (Correct Answer)
D. Quadrant method

Explanation: ### Explanation The method described is the **Clockwise method** (also known as the radial or spoke-of-a-wheel method). In this technique, the breast is visualized as a clock face. The clinician begins at a specific position (e.g., 12 or 2 o'clock) and moves the finger pads in a straight line from the periphery toward the nipple (centripetal) or vice versa. After completing one "spoke," the clinician moves to the next hour position and repeats the process until all 360 degrees of the breast tissue are covered. This ensures systematic coverage of all lactiferous ducts radiating toward the nipple. **Why other options are incorrect:** * **Vertical strip method:** This is currently considered the most effective technique for Clinical Breast Examination (CBE). The clinician moves fingers up and down in parallel vertical lines (strips) across the entire breast, from the clavicle to the inframammary fold and from the sternum to the mid-axillary line. * **Concentric method:** Also called the "Circular method," the clinician palpates in increasing or decreasing concentric circles starting from the nipple and moving outward (or vice versa). * **Quadrant method:** This involves dividing the breast into four quadrants (Upper Outer, Upper Inner, Lower Outer, Lower Inner) and palpating each section individually. It is less systematic than the clockwise or vertical strip methods. **Clinical Pearls for NEET-PG:** * **Gold Standard:** The **Vertical Strip Method** is preferred by the American Cancer Society as it is most likely to cover all breast tissue, including the "Tail of Spence." * **Positioning:** For a proper CBE, the patient should be supine with the ipsilateral arm raised above the head to flatten the breast tissue against the chest wall. * **Palpation Technique:** Use the **pads** of the middle three fingers (2nd, 3rd, and 4th), applying three levels of pressure (light, medium, and deep) at every point.

Question 327: What is the standard treatment for cystosarcoma phyllodes?

A. Simple mastectomy (Correct Answer)
B. Radical mastectomy
C. Modified radical mastectomy
D. Antibiotics with conservative treatment

Explanation: **Explanation:** **Cystosarcoma Phyllodes** (Phyllodes tumor) is a rare fibroepithelial breast tumor characterized by a "leaf-like" growth pattern. The standard treatment is **Simple Mastectomy** (or wide local excision with >1 cm margins) because these tumors spread locally and via the hematogenous route, rather than through the lymphatic system. * **Why Simple Mastectomy is correct:** Since Phyllodes tumors rarely involve axillary lymph nodes (less than 1% incidence), a simple mastectomy—which removes the entire breast tissue without axillary clearance—is sufficient for large or malignant tumors to ensure clear margins and prevent local recurrence. * **Why Radical/Modified Radical Mastectomy (MRM) are wrong:** These procedures involve axillary lymph node dissection. Because Phyllodes tumors behave like sarcomas (spreading via blood, not lymphatics), routine axillary dissection is unnecessary and adds morbidity without improving survival. * **Why Antibiotics are wrong:** Phyllodes is a neoplastic condition, not an inflammatory or infectious process like mastitis or a breast abscess. **High-Yield Clinical Pearls for NEET-PG:** * **Classification:** Can be Benign, Borderline, or Malignant based on stromal cellularity, atypia, and mitotic index. * **Clinical Feature:** Typically presents as a large, painless, mobile mass with rapid growth; the overlying skin may be shiny with prominent veins. * **Key Distinction:** Unlike Fibroadenomas, Phyllodes tumors occur in older women (35–50 years) and have a high risk of local recurrence if margins are inadequate. * **Treatment Rule:** Wide local excision (margin >1 cm) for small tumors; Simple Mastectomy for large tumors or high tumor-to-breast ratio.

Question 328: Estrogen receptor activity is clinically useful in predicting:

A. The presence of ovarian cancer
B. The presence of metastatic disease
C. Response to chemotherapy
D. Response to hormonal manipulation (Correct Answer)

Explanation: **Explanation:** **Why Option D is Correct:** Estrogen Receptors (ER) and Progesterone Receptors (PR) are nuclear transcription factors found in breast cancer cells. Their presence indicates that the tumor growth is driven by hormonal signaling. Clinically, ER/PR status is the most important **predictive factor** for response to endocrine (hormonal) therapies such as Tamoxifen (Selective Estrogen Receptor Modulator) or Aromatase Inhibitors (e.g., Anastrozole). Patients who are ER-positive have a 50-60% response rate to hormonal manipulation, which increases to nearly 80% if they are both ER and PR positive. **Why Other Options are Incorrect:** * **Option A:** While some ovarian cancers express ER, ER testing in breast surgery is specific to breast malignancy management and is not a screening or diagnostic tool for ovarian cancer. * **Option B:** ER status does not predict the *presence* of metastasis; however, it may predict the *site* of metastasis (ER+ tumors often spread to bones, while ER- tumors favor visceral organs). * **Option C:** Response to chemotherapy is generally higher in "Triple Negative" or ER-negative tumors because they have higher proliferation rates. ER status specifically predicts hormonal, not cytotoxic, sensitivity. **NEET-PG High-Yield Pearls:** * **Best Prognostic Factor:** Number of involved axillary lymph nodes (most important for overall survival). * **Best Predictive Factor:** ER/PR status (for hormonal therapy) and HER2/neu status (for Trastuzumab). * **Luminal A Subtype:** ER+, PR+, HER2-, low Ki-67. This subtype has the best prognosis. * **Triple Negative (Basal-like):** ER-, PR-, HER2-. This subtype has the worst prognosis and is often associated with BRCA1 mutations.

Question 329: A 40-year-old female presents with a 2 cm breast nodule and a proven metastatic axillary lymph node. What is the recommended treatment?

A. Quadrantectomy
B. Mastectomy with local radiotherapy
C. Patey's mastectomy with adjuvant chemotherapy (Correct Answer)
D. Halsted's radical mastectomy with tamoxifen

Explanation: ### Explanation **1. Why Option C is Correct:** The patient presents with a 2 cm breast nodule (T1/T2) and proven axillary lymph node metastasis (N1). This constitutes **Operable Breast Cancer**. The standard surgical treatment for operable breast cancer involving axillary nodes is **Modified Radical Mastectomy (MRM)**. **Patey’s Mastectomy** is a type of MRM that involves: * Removal of the entire breast tissue (Simple Mastectomy). * Removal of Level I, II, and III axillary lymph nodes. * **Preservation of the Pectoralis Major** muscle while **sacrificing/reflecting the Pectoralis Minor** to facilitate complete clearance of Level III nodes. Since the patient has proven nodal metastasis, **Adjuvant Chemotherapy** is mandatory to address micrometastatic disease and reduce the risk of recurrence. **2. Why Other Options are Incorrect:** * **Option A (Quadrantectomy):** While Breast Conserving Surgery (BCS) is an option for small tumors, it must always be accompanied by Axillary Lymph Node Dissection (ALND) and mandatory postoperative radiotherapy. Quadrantectomy alone is insufficient. * **Option B (Mastectomy with local radiotherapy):** Mastectomy alone does not address the proven axillary metastasis. Radiotherapy is usually an adjuvant, not a replacement for surgical clearance of nodes in operable cases. * **Option D (Halsted’s Radical Mastectomy):** This involves removing the Pectoralis Major and Minor. It is now obsolete due to severe morbidity (e.g., lymphedema, "hollow" chest) and because MRM offers equivalent survival rates. Tamoxifen is only indicated if the tumor is Hormone Receptor (ER/PR) positive. **3. NEET-PG High-Yield Pearls:** * **Auchincloss Mastectomy:** A type of MRM where both Pectoralis Major and Minor are preserved (Level III nodes are not cleared). * **Standard of Care:** Currently, MRM (Patey's or Auchincloss) is the most common surgery for breast cancer in India. * **Nerve Preservation:** During axillary dissection, the **Long Thoracic Nerve (Bell’s)** and **Thoracodorsal Nerve** must be preserved to avoid "Winging of Scapula" and Latissimus Dorsi weakness, respectively. * **Sentinel Lymph Node Biopsy (SLNB):** Indicated only if the axilla is clinically and radiologically negative (cN0). Since this patient has a "proven" node, she must undergo ALND.

Question 330: What is the treatment for Paget's disease of the nipple?

A. Radiotherapy
B. Radical mastectomy
C. Biopsy and simple mastectomy (Correct Answer)
D. Chemotherapy

Explanation: **Explanation:** **Paget’s Disease of the Nipple** is a rare manifestation of breast cancer characterized by malignant cells (Paget cells) infiltrating the epidermis of the nipple-areola complex. In over 90% of cases, it is associated with an underlying **Ductal Carcinoma In Situ (DCIS)** or invasive carcinoma. 1. **Why Option C is Correct:** The management begins with a **wedge or punch biopsy** to confirm the presence of Paget cells (large cells with clear cytoplasm and prominent nuclei). Once confirmed, the standard surgical treatment is a **Simple Mastectomy** (with or without sentinel lymph node biopsy) because the underlying malignancy is often multicentric or located deep within the breast tissue. Breast-conserving surgery (BCS) is an alternative only if the underlying tumor is localized and can be excised with clear margins followed by radiotherapy. 2. **Why Other Options are Incorrect:** * **Radiotherapy (A):** It is an adjuvant treatment used after BCS to reduce recurrence but is not the primary definitive treatment for the disease itself. * **Radical Mastectomy (B):** This involves removing the pectoralis muscles and is now obsolete. Even Modified Radical Mastectomy (MRM) is reserved only if invasive cancer is confirmed with axillary lymphadenopathy. * **Chemotherapy (D):** This is a systemic therapy used for invasive or metastatic disease, not the primary local treatment for Paget’s disease. **High-Yield Clinical Pearls for NEET-PG:** * **Clinical Presentation:** Often misdiagnosed as eczema; however, Paget’s **destroys the nipple** and does not respond to topical steroids. * **Pathology:** Paget cells are PAS positive, Diastase resistant, and Alcian blue positive. * **Immunohistochemistry:** Typically positive for **HER2/neu** and **CK7**. * **Key Distinction:** Unlike eczema, Paget’s disease starts on the nipple and spreads to the areola.

Practice by Chapter

Breast Anatomy and Physiology

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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

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