Breast Surgery Practice Questions

Q: Which of the following is NOT true about gynecomastia?

None of the above. **Explanation:** Gynecomastia is the benign proliferation of glandular breast tissue in males, primarily caused by an imbalance between estrogen and androgen action. The question asks to identify the incorrect statement; however, all options provided are clinically accurate associations with gynecomastia, making **"None of the above"** the correct choice. 1. **Drug-induced (Option A):** This is a very common cause. High-yield drugs associated with gynecomastia include **S**pironolactone, **D**igoxin, **C**imetidine, **K**etoconazole, and **E**strogens (Mnemonic: **"Some Drugs Create Knockers"**). 2. **Klinefelter’s Syndrome (Option B):** This is the most common chromosomal cause (47, XXY). Patients have primary testicular failure (low testosterone) and elevated gonadotropins, leading to increased peripheral conversion to estrogen. These patients have a **20-50 times higher risk** of developing male breast cancer. 3. **Cryptorchidism (Option C):** Undescended testes are associated with testicular dysgenesis and an increased risk of germ cell tumors (especially seminomas). These conditions can disrupt the hormonal axis or produce hCG, leading to secondary gynecomastia. **High-Yield Clinical Pearls for NEET-PG:** * **Physiological Gynecomastia:** Occurs in three peaks: Neonatal (maternal estrogens), Pubertal (most common, usually resolves in 2 years), and Senile (aging). * **Grading:** Uses the **Simon Scale** (Grade I to III) to determine surgical management. * **Treatment:** The medical drug of choice is **Tamoxifen** (SERM). Surgery (Subcutaneous mastectomy/liposuction) is indicated if the condition is long-standing (>1 year) or causes significant psychological distress. * **True vs. Pseudo-gynecomastia:** True gynecomastia involves glandular tissue (firm, concentric), while pseudo-gynecomastia is merely fat deposition (soft, seen in obesity).

Q: What is the most frequent site of accessory breast tissue?

Axilla. ### Explanation **1. Why Axilla is the Correct Answer:** Accessory breast tissue (polymastia) occurs due to the failure of the **primitive mammary ridge (milk line)** to regress during embryonic development. This ridge extends bilaterally from the **axilla to the groin**. While ectopic breast tissue can appear anywhere along this line, the **axilla** is the most common site, accounting for approximately 60–70% of cases. It often presents as a palpable lump that may enlarge or become tender during menstruation, pregnancy, or lactation due to hormonal responsiveness. **2. Why the Other Options are Incorrect:** * **B. Groin:** While the milk line terminates in the inguinal region, accessory breast tissue is significantly less common here than in the axillary region. * **C & D. Buttock and Thigh:** These are considered **extramammary sites**. While rare cases of ectopic breast tissue have been reported in these locations (likely due to migratory arrest of precursor cells), they do not lie on the primary milk line and are extremely rare compared to the axilla. **3. Clinical Pearls for NEET-PG:** * **Most common location:** Axilla (specifically the Tail of Spence is normal tissue, but accessory tissue is separate). * **Most common presentation:** A bilateral, asymptomatic axillary mass that fluctuates with hormonal cycles. * **Pathology:** Accessory breast tissue is subject to the same diseases as normal breast tissue, including **fibroadenoma** and **carcinoma** (most common type in accessory tissue is Invasive Ductal Carcinoma). * **Polythelia vs. Polymastia:** Polythelia (extra nipple) is the most common form of accessory breast tissue overall, whereas Polymastia refers to the presence of accessory glandular tissue. * **Association:** Polythelia has a known clinical association with **urinary tract anomalies** (e.g., renal agenesis or supernumerary kidneys).

Q: A female presents with a breast lump of size 6 cm. On examination, ipsilateral axillary lymph nodes are found to be enlarged and fixed. What is the TNM staging?

T3 N2. ### Explanation The TNM staging system for breast cancer is a cornerstone of surgical oncology. To solve this question, we must break down the clinical findings based on the AJCC 8th Edition criteria. **1. Tumor (T) Staging:** The size of the lump is **6 cm**. * T1: ≤ 2 cm * T2: > 2 cm but ≤ 5 cm * **T3: > 5 cm** * T4: Any size with extension to the chest wall or skin (edema/ulceration). Since the lump is 6 cm, it is classified as **T3**. **2. Node (N) Staging:** The examination reveals **ipsilateral axillary lymph nodes** that are **fixed** to one another or to other structures. * N1: Movable ipsilateral axillary lymph nodes. * **N2: Ipsilateral axillary lymph nodes that are fixed** or matted. * N3: Metastasis in ipsilateral infraclavicular, internal mammary, or supraclavicular nodes. The presence of fixed nodes confirms **N2**. **Conclusion:** Combining these gives **T3 N2**. --- ### Why Other Options are Incorrect: * **B (T2 N2):** Incorrect because T2 is limited to tumors ≤ 5 cm. * **C (T4 N2):** Incorrect because T4 requires involvement of the chest wall (Serratus anterior/Ribs) or skin (Peau d'orange/Ulceration). Size alone does not make a tumor T4. * **D (T1 N1):** Incorrect as T1 is ≤ 2 cm and N1 implies movable (not fixed) nodes. --- ### NEET-PG High-Yield Pearls: * **T4 Classification:** Note that involvement of the Pectoralis major muscle alone does **not** constitute T4; it must involve the chest wall (ribs, intercostals, or serratus anterior). * **Inflammatory Carcinoma:** This is clinically diagnosed and automatically staged as **T4d**. * **Dimpling vs. Peau d'orange:** Skin dimpling (tethering) is due to Cooper’s ligament involvement and does not change the T stage, whereas Peau d'orange (dermal lymphatic edema) signifies T4.

Q: Winging of the scapula is typically seen after mastectomy due to injury to which nerve?

Long thoracic nerve. **Explanation:** **1. Why the Long Thoracic Nerve is Correct:** The **Long Thoracic Nerve (Nerve of Bell)** originates from the nerve roots C5, C6, and C7. It runs along the lateral chest wall on the superficial surface of the **Serratus Anterior** muscle. During an Axillary Lymph Node Dissection (ALND) as part of a Modified Radical Mastectomy (MRM), this nerve is vulnerable to injury. The Serratus Anterior is responsible for protracting the scapula and holding its medial border against the thoracic wall. Denervation leads to paralysis of this muscle, causing the medial border of the scapula to protrude posteriorly—a clinical sign known as **"Winging of the Scapula."** Patients often complain of difficulty in lifting the arm above the shoulder level. **2. Why the Other Options are Incorrect:** * **Musculocutaneous Nerve:** This nerve (C5-C7) supplies the coracobrachialis, biceps brachii, and brachialis. It is not encountered during routine breast surgery. * **Intercostobrachial Nerve:** This is the most commonly injured nerve during mastectomy/ALND. Injury results in **numbness or paresthesia** of the skin on the upper inner aspect of the arm, but it does not cause motor deficits like winging. * **Thoracodorsal Nerve:** This nerve supplies the **Latissimus Dorsi** muscle. Injury leads to weakness in internal rotation, adduction, and extension of the arm (difficulty in "climbing" or "scratching the back"), but not winging of the scapula. **3. Clinical Pearls for NEET-PG:** * **Nerve of Bell:** Long Thoracic Nerve (Supplies Serratus Anterior $\rightarrow$ Winging). * **Nerve to Latissimus Dorsi:** Thoracodorsal Nerve (Injury $\rightarrow$ Weak adduction/extension). * **Most commonly injured nerve in MRM:** Intercostobrachial nerve (Sensory loss only). * **Halsted’s Sign:** If the medial pectoral nerve is injured, it leads to atrophy of the Pectoralis major muscle.

Q: Hadfield operation is done for which condition?

Duct Ectasia. **Explanation:** **Hadfield’s Operation (Total Duct Excision)** is the definitive surgical treatment for **Duct Ectasia** (also known as periductal mastitis). This condition involves the dilation of the major subareolar ducts, leading to chronic inflammation and symptoms such as cheesy/colored nipple discharge, nipple retraction, or recurrent subareolar abscesses. * **Why Option A is correct:** When medical management fails or when there is multi-duct discharge/recurrent fistula formation, Hadfield’s operation is performed. It involves a circumareolar incision to excise the entire major duct system (cone excision) from the base of the nipple. This removes the diseased tissue and prevents recurrence. **Why other options are incorrect:** * **B. Fibroadenoma:** These are benign "breast mice" typically managed by observation or simple **enucleation** if they are large or symptomatic. * **C. Mondor’s Disease:** This is a self-limiting thrombophlebitis of the superficial veins of the breast/chest wall. It is managed conservatively with **NSAIDs** and warm compresses; surgery is not indicated. * **D. Breast Cancer:** Management involves Wide Local Excision (Breast Conservation Surgery) or Modified Radical Mastectomy (MRM), depending on the stage. Hadfield’s is a benign duct procedure, not an oncological resection. **High-Yield Clinical Pearls for NEET-PG:** * **Microdochectomy:** If the discharge is from a **single duct** (e.g., Intraductal Papilloma), only that specific duct is excised (Urban’s procedure). * **Hadfield’s:** Indicated for **multiple ducts** or recurrent periductal mastitis. * **Zuska’s Disease:** Another name for recurrent retroareolar abscess associated with squamous metaplasia of lactiferous ducts, often requiring Hadfield’s operation. * **Smoking:** The strongest risk factor for the development of Duct Ectasia/Periductal mastitis.

Q: Which of the following statements regarding fibroadenoma is FALSE?

Responds well to hormone. **Explanation:** Fibroadenoma is the most common benign tumor of the female breast, typically occurring in women aged 15–35 years. It is a fibroepithelial tumor characterized by the proliferation of both glandular and stromal elements. **Why Option C is the Correct (False) Statement:** While fibroadenomas are hormonally sensitive—meaning they may enlarge during pregnancy or fluctuate slightly during the menstrual cycle—they **do not "respond well" to hormonal therapy** in a clinical or therapeutic sense. There is no standard medical treatment involving hormones (like OCPs or SERMs) that reliably shrinks or eliminates a fibroadenoma. Management is typically conservative (observation) or surgical excision. **Analysis of Other Options:** * **A. Painless:** Most fibroadenomas are characteristically painless, smooth, and discrete. * **B. Unilateral:** Although they can be bilateral in 10–15% of cases, the vast majority present as a single, unilateral lump. * **D. Firm:** On palpation, they have a classic firm, rubbery consistency. **NEET-PG High-Yield Pearls:** * **"Breast Mouse":** Due to high mobility within the breast tissue (not fixed to skin or chest wall). * **Mammography:** May show a well-defined mass with "Popcorn calcification" (seen in older, involuted fibroadenomas). * **Histology:** Two patterns are described—**Intracanalicular** (stroma compresses ducts into slits) and **Pericanalicular** (ducts remain patent). * **Giant Fibroadenoma:** Defined as a fibroadenoma >5 cm in size or >500g in weight. * **Phyllodes Tumor:** The most important differential diagnosis; it grows rapidly and has higher stromal cellularity.

Question 1

Which of the following is NOT true about gynecomastia?

Accepted Answer

None of the above

Answer

Can be drug-induced

Answer

Associated with Klinefelter's syndrome

Answer

Seen in cryptorchidism

Question 2

What is the most frequent site of accessory breast tissue?

Accepted Answer

Axilla

Answer

Groin

Answer

Buttock

Answer

Thigh

Question 3

A woman is diagnosed to have breast carcinoma. What is the recommended investigation for the contralateral breast?

Accepted Answer

Mammography

Answer

Random Fine Needle Aspiration Cytology (FNAC)

Answer

No investigation needed

Answer

Clinical breast examination

Question 4

A 60-year-old lady presents with blood-stained nipple discharge and a family history of breast cancer. What is the next best step in her management?

Accepted Answer

MRI

Answer

Ductoscopy

Answer

Nipple discharge cytology

Answer

Sono-mammogram

Question 5

A female presents with a breast lump of size 6 cm. On examination, ipsilateral axillary lymph nodes are found to be enlarged and fixed. What is the TNM staging?

Accepted Answer

T3 N2

Answer

T2 N2

Answer

T4 N2

Answer

T1 N1

Question 6

A 45-year-old female presented to the OPD with a 4 cm breast lump in the left breast. On examination, left axillary lymph nodes were fixed and matted. Which of the following is the preferred treatment option?

Accepted Answer

Neoadjuvant chemotherapy + Modified radical mastectomy + Radiotherapy

Answer

Breast conservation surgery + Axillary LN sampling + Radiotherapy

Answer

Simple mastectomy + Axillary LN sampling

Answer

Halsted radical mastectomy followed by Radiotherapy

Question 7

Winging of the scapula is typically seen after mastectomy due to injury to which nerve?

Accepted Answer

Long thoracic nerve

Answer

Musculocutaneous nerve

Answer

Intercostobrachial nerve

Answer

Thoracodorsal nerve

Question 8

Hadfield operation is done for which condition?

Accepted Answer

Duct Ectasia

Answer

Fibroadenoma

Answer

Mondor's disease

Answer

Breast cancer

Question 9

Which of the following statements regarding fibroadenoma is FALSE?

Accepted Answer

Responds well to hormone

Answer

Painless

Answer

Unilateral

Answer

Firm

Question 10

A 55-year-old female patient presents with a 3 cm fungating breast mass and palpable ipsilateral axillary lymph nodes. There is no evidence of distant metastases. What is the most appropriate surgical management?

Accepted Answer

Modified radical mastectomy with axillary lymph node dissection

Answer

Radical mastectomy

Answer

Hormonal therapy

Answer

Palliative therapy

Breast Surgery — MCQs

Breast Surgery — MCQs

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