Breast Surgery — MCQs

A 36-year-old woman complains of a 3-month history of bloody discharge from the nipple. On examination, a small nodule is found deep to the areola. Careful palpation of the nipple-areolar complex results in blood appearing at the 3 o'clock position. Mammogram findings are normal. What is the likeliest diagnosis?

Q223Medium

Conservative surgery is not indicated in breast carcinoma if there is?

Q224Medium

Which of the following is NOT associated with fat necrosis?

Q225Easy

The Van Nuys prognostic index is not based on which of the following parameters?

Q226Easy

What is the most frequently used procedure for diagnosing palpable breast masses?

Q227Easy

Zuska disease is an eponym for what condition?

Q228Medium

A 17-year-old female underwent Fine Needle Aspiration cytology (FNAC) for a lump in the breast which was non-tender, firm and mobile. Which of the following features would suggest a benign breast disease?

Q229Easy

Which of the following is not included in the carcinoma in-situ category?

Q230Medium

Mark the false statement regarding physiological gynecomastia?

Breast Surgery Indian Medical PG Practice Questions and MCQs

Question 221: Serocystic disease of Brodie is also known as:

A. Cystosarcoma phyllodes (Correct Answer)
B. Fibroadenoma
C. Galactocele
D. Traumatic fat necrosis

Explanation: **Explanation:** **Cystosarcoma Phyllodes** (Option A) is the correct answer. Historically, Sir Benjamin Brodie described this tumor in 1838 as "Serocystic Disease of Brodie" due to its characteristic appearance of large, cystic spaces filled with leaf-like (phyllodes) stromal projections and serous fluid. It is a fibroepithelial tumor arising from the periductal stroma. While the name "sarcoma" was used, the majority are benign, though they have a high potential for local recurrence and can occasionally be malignant. **Why other options are incorrect:** * **Fibroadenoma (Option B):** While both are fibroepithelial tumors, fibroadenomas are smaller, encapsulated, and occur in younger women (15–35 years). They lack the hypercellular stroma and leaf-like architecture of phyllodes. * **Galactocele (Option C):** This is a milk-containing retention cyst that typically occurs in lactating women due to a blocked duct. * **Traumatic Fat Necrosis (Option D):** This is a non-neoplastic inflammatory condition resulting from breast trauma, often mimicking carcinoma clinically and radiologically (hard lump with skin tethering). **High-Yield Clinical Pearls for NEET-PG:** * **Age Group:** Typically occurs in the 4th to 5th decade (older than fibroadenoma). * **Clinical Feature:** Rapidly enlarging, painless, mobile, and bosselated (lumpy) mass. It may cause pressure necrosis of the overlying skin but rarely involves the nipple-areola complex. * **Histology:** Characterized by increased stromal cellularity and "leaf-like" processes. * **Management:** Wide local excision with a **1 cm margin** is the treatment of choice. Axillary lymph node dissection is not routinely required as it spreads hematogenously (like a sarcoma).

Question 222: A 36-year-old woman complains of a 3-month history of bloody discharge from the nipple. On examination, a small nodule is found deep to the areola. Careful palpation of the nipple-areolar complex results in blood appearing at the 3 o'clock position. Mammogram findings are normal. What is the likeliest diagnosis?

A. Intraductal papilloma (Correct Answer)
B. Breast cyst
C. Intraductal carcinoma
D. Carcinoma in situ

Explanation: ### Explanation **Correct Answer: A. Intraductal papilloma** **Why it is correct:** Intraductal papilloma is the **most common cause of spontaneous, bloody nipple discharge** from a single duct. It is a benign, finger-like fibrovascular growth within the lactiferous ducts. The classic presentation involves a woman (typically aged 30–50) with serosanguinous or bloody discharge. The "point-pressure" test (palpation at a specific clock position) often triggers the discharge, as seen in this case. Because these lesions are usually small and soft, they are frequently **occult on mammography**, making clinical findings and ductography/ultrasound more diagnostic. **Why incorrect options are wrong:** * **B. Breast cyst:** These typically present as painless or tender mobile lumps. They do not cause nipple discharge unless associated with other pathology. * **C & D. Intraductal carcinoma / Carcinoma in situ:** While malignancy must be ruled out in older patients, it is a less common cause of bloody discharge in a 36-year-old compared to papilloma. Malignant discharge is more often associated with an imaging abnormality or a larger, hard mass. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause of bloody nipple discharge:** Intraductal papilloma. * **Most common cause of breast lumps:** Fibroadenoma (younger) or Fibrocystic changes. * **Management:** Microdochectomy (excision of the involved duct) is the definitive treatment and provides tissue for histopathology to rule out papillary carcinoma. * **Triple Assessment:** Always remember that any nipple discharge requires clinical exam, imaging (USG/Mammography), and cytology/biopsy to exclude malignancy.

Question 223: Conservative surgery is not indicated in breast carcinoma if there is?

A. Lymph node metastasis
B. Sub-areolar location of the lump (Correct Answer)
C. Lump of size 4 cms
D. Disease involving the lower quadrant only

Explanation: **Explanation:** Breast Conserving Surgery (BCS) aims to remove the tumor with a clear margin while maintaining an acceptable cosmetic result. The choice between BCS and Mastectomy depends on the feasibility of achieving negative margins and the ability to deliver adjuvant radiotherapy. **Why Sub-areolar location is the correct answer:** Traditionally, a **sub-areolar (central) location** was considered an absolute contraindication for BCS because removing the tumor requires the excision of the nipple-areola complex (NAC). This results in poor cosmesis and technical difficulty in achieving clear margins while preserving the breast's contour. While modern oncoplastic techniques are evolving, for the purpose of standard examinations like NEET-PG, a central/sub-areolar location remains a classic contraindication. **Analysis of Incorrect Options:** * **A. Lymph node metastasis:** The status of axillary lymph nodes determines the stage and the need for axillary clearance/radiotherapy, but it does **not** preclude conserving the breast tissue itself. * **C. Lump of size 4 cm:** Size is a relative contraindication. The key factor is the **tumor-to-breast ratio**. In a large breast, a 4 cm tumor can be excised with good cosmetic results. BCS is generally preferred for tumors <5 cm (T1 and T2). * **D. Lower quadrant involvement:** The quadrant location does not contraindicate BCS; in fact, tumors in any single quadrant are ideal candidates for wide local excision. **Clinical Pearls for NEET-PG:** * **Absolute Contraindications for BCS:** 1. Prior radiotherapy to the breast/chest wall. 2. Pregnancy (unless RT can be deferred until after delivery). 3. Multicentric disease (tumors in different quadrants). 4. Diffuse suspicious microcalcifications on mammography. 5. Persistent positive margins after re-excision. * **Relative Contraindications:** Collagen vascular diseases (e.g., Scleroderma), large tumor-to-breast ratio, and sub-areolar location.

Question 224: Which of the following is NOT associated with fat necrosis?

A. Liposuction
B. Radiotherapy (Correct Answer)
C. Mammoplasty
D. Carcinoma breast

Explanation: **Explanation:** Fat necrosis of the breast is a benign inflammatory process that occurs due to the saponification of adipose tissue. It typically presents as a firm, painless, and sometimes irregular lump that can clinically mimic breast cancer. **Why Radiotherapy is the Correct Answer:** In the context of this specific question, **Radiotherapy (Option B)** is the least likely to be a primary cause of fat necrosis compared to the other options. While radiotherapy can cause tissue fibrosis and skin changes, fat necrosis is classically a result of **physical trauma** or **surgical manipulation** of the breast tissue. (Note: Some advanced texts mention post-radiation fat necrosis, but in standard surgical teaching for NEET-PG, trauma and surgery are the primary associations). **Analysis of Other Options:** * **Liposuction (Option A):** This is a high-energy mechanical trauma to the subcutaneous fat, frequently leading to fat cell rupture and subsequent necrosis. * **Mammoplasty (Option C):** Any breast surgery (reduction or augmentation) involves extensive tissue handling and disruption of blood supply, which are hallmark triggers for fat necrosis. * **Carcinoma Breast (Option D):** Large or locally advanced tumors can cause local tissue ischemia or pressure necrosis of the surrounding fat. Additionally, fat necrosis often occurs *after* the biopsy or surgical treatment of a carcinoma. **NEET-PG High-Yield Pearls:** * **Clinical Presentation:** Often follows a history of trauma (though only 50% of patients remember the incident). * **Radiology:** On mammography, it classically presents as **"Oil Cysts"** with **eggshell calcification**. * **Pathology:** Characterized by **foamy macrophages**, multinucleated giant cells, and anucleated adipocytes (ghost cells). * **Management:** It is self-limiting; once malignancy is ruled out via imaging or FNA, no further treatment is required.

Question 225: The Van Nuys prognostic index is not based on which of the following parameters?

A. Age
B. Microcalcification
C. Size
D. Estrogen receptor status (Correct Answer)

Explanation: The **Van Nuys Prognostic Index (VNPI)** is a scoring system used specifically for **Ductal Carcinoma In Situ (DCIS)** to predict the risk of local recurrence and guide the decision between breast-conserving surgery alone, surgery with radiation, or mastectomy. ### **Explanation of the Correct Answer** **D. Estrogen receptor (ER) status:** While ER status is crucial for deciding hormonal therapy in invasive breast cancer, it is **not** a component of the Van Nuys Prognostic Index. The VNPI focuses on clinical and pathological features that predict local recurrence risk rather than molecular markers. ### **Explanation of Incorrect Options** The VNPI is based on four specific parameters, each scored from 1 to 3: * **A. Age:** Younger age (especially <40) is associated with a higher risk of recurrence. * **C. Size:** Larger tumors have a higher likelihood of residual disease. * **Tumor Grade/Pathology:** This includes the presence of **comedo-type necrosis** and nuclear grade. * **Margin Width:** The distance between the tumor and the surgical resection margin. **B. Microcalcification:** While not a direct scoring parameter, microcalcifications are the primary mammographic finding of DCIS. However, in the context of this question, it is often confused with "Pathological classification" or "Size." Since ER status is definitively excluded from the scoring system, it remains the most accurate answer. ### **Clinical Pearls for NEET-PG** * **VNPI Scoring:** Scores range from 4 to 12. * **4-6:** Low risk (Excision alone). * **7-9:** Intermediate risk (Excision + Radiation). * **10-12:** High risk (Mastectomy). * **Modified VNPI:** The original index (1996) had three parameters (Size, Margin, Grade); **Age** was added later to create the University of Southern California (USC)/Van Nuys Prognostic Index. * **DCIS Hallmark:** The most common presentation is **microcalcifications** on screening mammography.

Question 226: What is the most frequently used procedure for diagnosing palpable breast masses?

A. Core-cutting needle biopsy
B. Fine needle aspiration (Correct Answer)
C. Excisional biopsy
D. Incisional biopsy

Explanation: **Explanation:** The diagnosis of a palpable breast mass follows the **Triple Assessment** protocol: Clinical examination, Imaging (Mammography/Ultrasound), and Pathological diagnosis. **Why Fine Needle Aspiration (FNA) is the correct answer:** FNA is the **most frequently used** initial procedure for palpable breast masses because it is minimally invasive, cost-effective, and provides rapid results. It is highly accurate in distinguishing between cystic and solid lesions. In a clinical setting, if a cyst is suspected, FNA serves both a diagnostic and therapeutic purpose (aspiration leads to disappearance of the lump). **Analysis of Incorrect Options:** * **Core-cutting needle biopsy (CNB):** While CNB is the **Gold Standard** and the preferred method for non-palpable, suspicious lesions (as it preserves tissue architecture and allows for IHC markers like ER/PR/HER2), it is technically more demanding and expensive than FNA, making it the second most frequent choice. * **Excisional biopsy:** This involves removing the entire lump. It was historically common but is now reserved for cases where needle biopsies are inconclusive or for specific lesions like Fibroadenomas (if requested by the patient). * **Incisional biopsy:** This involves removing only a piece of a large mass. It is rarely used today, typically only for very large, inoperable locally advanced breast cancers where a core biopsy is insufficient. **Clinical Pearls for NEET-PG:** * **Triple Assessment:** If all three components (Clinical, Imaging, Cytology) are concordant, the diagnostic accuracy exceeds **99%**. * **FNA Limitation:** It cannot distinguish between **In-situ (DCIS)** and **Invasive carcinoma** because it only evaluates cytology, not tissue architecture. * **Gold Standard:** Core-cutting biopsy is the investigation of choice for definitive diagnosis before definitive surgery.

Question 227: Zuska disease is an eponym for what condition?

A. Squamous metaplasia of lactiferous ducts in the breast (Correct Answer)
B. Chronic inflammation of bile ducts
C. Chronic renal transplant rejection
D. None of the above

Explanation: **Explanation:** **Zuska’s Disease**, also known as **Squamous Metaplasia of Lactiferous Ducts (SMID)**, is a condition characterized by the triad of recurrent subareolar abscesses, draining fistulas, and nipple retraction. **Why Option A is correct:** The underlying pathophysiology involves the replacement of the normal double-layered cuboidal epithelium of the lactiferous ducts with **keratinizing squamous epithelium**. This leads to the accumulation of keratin debris, which plugs the ducts, causing proximal dilatation, stasis, and secondary bacterial infection. This eventually results in a periductal abscess that typically ruptures at the edge of the areola, forming a **periareolar fistula**. **Why other options are incorrect:** * **Option B:** Chronic inflammation of the bile ducts is typically associated with conditions like Primary Sclerosing Cholangitis (PSC), not Zuska’s disease. * **Option C:** Chronic renal transplant rejection involves graft fibrosis and vascular changes (obliterative arteriopathy), unrelated to this breast pathology. **High-Yield Clinical Pearls for NEET-PG:** * **Strongest Risk Factor:** **Smoking** is the most significant risk factor (found in >90% of patients). Smoking-induced toxins are thought to cause direct damage to the ductal epithelium. * **Clinical Presentation:** Recurrent periareolar abscesses that fail to resolve with simple incision and drainage (I&D). * **Management:** Simple I&D has a high recurrence rate. The definitive treatment is **Hadfield’s Procedure** (Total Duct Excision) or excision of the affected duct along with the fistula tract and the associated segment of the nipple-areolar complex. * **Differential Diagnosis:** Must be distinguished from idiopathic granulomatous mastitis and breast cancer (due to nipple retraction).

Question 228: A 17-year-old female underwent Fine Needle Aspiration cytology (FNAC) for a lump in the breast which was non-tender, firm and mobile. Which of the following features would suggest a benign breast disease?

A. Dyscohesive ductal epithelial cells without cellular fragments
B. Tightly arranged ductal epithelial cells with dyscohesive bare nuclei (Correct Answer)
C. Stromal predominance with spindle cells
D. Polymorphism with single or arranged ductal epithelial cells

Explanation: ### **Explanation** The clinical presentation of a 17-year-old female with a firm, non-tender, and highly mobile breast lump (the "breast mouse") is classic for a **Fibroadenoma**, the most common benign breast tumor in young women. **Why Option B is Correct:** The cytological hallmark of benign breast lesions, particularly fibroadenomas, is the presence of **bipolar bare nuclei** (also called "naked nuclei") scattered in the background. These represent myoepithelial cells that have been stripped of their cytoplasm. Their presence is a strong indicator of benignity. Additionally, benign lesions show **tightly cohesive clusters** of ductal epithelial cells, often arranged in "antler-like" or "staghorn" patterns. **Analysis of Incorrect Options:** * **Option A:** **Dyscohesive** ductal cells (cells falling apart) are a hallmark of **malignancy** (e.g., Ductal Carcinoma). In cancer, cells lose their adhesion molecules (like E-cadherin), leading to a scattered, non-cohesive appearance. * **Option C:** While fibroadenomas have a stromal component, "stromal predominance with spindle cells" is more characteristic of a **Phyllodes tumor**, which requires differentiation from a simple fibroadenoma due to its potential for rapid growth and recurrence. * **Option D:** **Polymorphism** (variation in size and shape) and single epithelial cells are features of **cellular atypia and malignancy**. Benign cells are typically monomorphic (uniform). ### **High-Yield Clinical Pearls for NEET-PG** * **Triple Assessment:** Clinical examination + Imaging (Ultrasound for <30y, Mammography for >30y) + Pathology (FNAC/Core Biopsy). * **FNAC vs. Core Biopsy:** FNAC is excellent for identifying bare nuclei (benignity), but Core Biopsy is preferred if malignancy is suspected to assess invasiveness and receptor status (ER/PR/Her2neu). * **The "Breast Mouse":** A term used for Fibroadenoma due to its extreme mobility within the breast tissue. * **Cytology Rule:** The presence of **myoepithelial cells** (bare nuclei) virtually excludes a diagnosis of invasive breast cancer.

Question 229: Which of the following is not included in the carcinoma in-situ category?

A. Ductal carcinoma in situ (DCIS)
B. Paget's disease of the nipple
C. Lobular carcinoma in situ (LCIS) (Correct Answer)
D. None of the above

Explanation: The classification of breast lesions is a high-yield topic for NEET-PG. While the term "carcinoma in situ" implies a pre-invasive malignancy, current clinical and pathological consensus has redefined the status of LCIS. ### **Explanation of the Correct Option** **C. Lobular Carcinoma in Situ (LCIS):** Under the latest WHO classification and AJCC guidelines, LCIS is no longer considered a true "carcinoma in situ" or a direct precursor to invasive cancer. Instead, it is classified as **Lobular Neoplasia**. It is viewed as a **risk factor (indicator)** rather than a direct anatomical precursor. Patients with LCIS have an increased risk of developing invasive ductal or lobular carcinoma in *either* breast (bilateral risk), unlike true in-situ lesions which progress at the site of origin. ### **Analysis of Incorrect Options** * **A. Ductal Carcinoma in Situ (DCIS):** This is a true "carcinoma in situ." It is a clonal proliferation of malignant cells confined within the basement membrane of the breast ducts. If left untreated, it has a high potential to progress directly into invasive ductal carcinoma at the same site. * **B. Paget’s Disease of the Nipple:** This is almost always (95%+) associated with an underlying DCIS or invasive carcinoma. The "Paget cells" themselves are malignant epithelial cells within the epidermis of the nipple-areola complex, placing it firmly within the malignant/in-situ category. ### **NEET-PG High-Yield Pearls** * **LCIS Hallmark:** Loss of **E-cadherin** expression (due to mutation in the CDH1 gene), which leads to discohesive cells. * **Multicentricity:** LCIS is frequently multicentric (60-90%) and bilateral (50-70%). * **Management of LCIS:** Usually involves close surveillance and selective use of Chemoprevention (Tamoxifen/Raloxifene). Prophylactic bilateral mastectomy is only considered in high-risk genetic cases. * **DCIS Pattern:** The "Comedo" subtype is the most aggressive form of DCIS, characterized by central necrosis and high nuclear grade.

Question 230: Mark the false statement regarding physiological gynecomastia?

A. Adolescent gynecomastia is caused by an excess of estradiol relative to testosterone.
B. Excess of circulating estrogens is specific to causing neonatal gynecomastia only. (Correct Answer)
C. Neonatal gynecomastia is caused by the action of placental estrogens on neonatal breast tissues.
D. Senescent gynecomastia is caused by a fall in the level of circulating testosterone.

Explanation: **Explanation:** Gynecomastia is the benign proliferation of glandular breast tissue in males, primarily driven by an **imbalance between free estrogen and free androgen** actions on breast tissue. **Why Option B is the Correct (False) Statement:** The statement is false because an excess of circulating estrogens (relative to androgens) is the **fundamental pathophysiology** underlying gynecomastia across *all* age groups, not just neonates. Whether the cause is physiological, pharmacological, or pathological, the common pathway is always an increased estrogen-to-androgen ratio. **Analysis of Other Options:** * **Option A (Adolescent):** True. During puberty (usually ages 12–15), there is a transient rise in plasma estradiol levels before the full rise in testosterone, leading to a temporary hormonal imbalance. * **Option C (Neonatal):** True. It occurs in up to 60-90% of newborns due to the high levels of maternal and placental estrogens crossing the fetal circulation. It typically resolves within weeks. * **Option D (Senescent):** True. In older men (ages 50–80), testosterone levels decline due to testicular atrophy, while peripheral conversion of androgens to estrogens (via aromatase in adipose tissue) often increases, shifting the ratio. **High-Yield Clinical Pearls for NEET-PG:** * **Trimodal Distribution:** Physiological gynecomastia occurs at three life stages: Neonatal, Pubertal, and Senescent. * **Drug-Induced:** The most common cause of non-physiological gynecomastia. Remember the mnemonic **"DISCO"**: **D**igoxin, **I**soniazid, **S**pironolactone, **C**imetidine, **O**estrogens. * **Grading:** Uses the **Simon Scale** (Grade I to III) based on the size of the breast and skin redundancy. * **Management:** Physiological variants are usually self-limiting and require reassurance. If persistent or painful, Tamoxifen (SERM) is the medical treatment of choice.

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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