Urology — MCQs

Urology Indian Medical PG Practice Questions and MCQs

Question 311: Painless hematuria is seen in all of the following conditions except?

A. Hypernephroma
B. Renal TB
C. Bleeding disorders
D. Renal infarction (Correct Answer)

Explanation: **Explanation:** In clinical urology, the presence or absence of pain during hematuria is a critical diagnostic differentiator. **Renal Infarction** is the correct answer because it typically presents with **acute, severe flank pain** (simulating renal colic) due to sudden ischemia and capsular stretching, accompanied by hematuria. **Analysis of Options:** * **Hypernephroma (Renal Cell Carcinoma):** Classically presents with **painless hematuria** (the most common presenting symptom). The "classic triad" (hematuria, flank pain, and palpable mass) is seen in only 10% of cases and usually indicates advanced disease. * **Renal TB:** Often referred to as "sterile pyuria," but it frequently causes **painless total hematuria**. Pain only occurs if clots or debris cause ureteric obstruction. * **Bleeding Disorders:** Systemic coagulopathies or anticoagulation therapy lead to spontaneous, **painless bleeding** from the urinary tract unless a secondary obstructive clot forms. **Clinical Pearls for NEET-PG:** 1. **Rule of Thumb:** Painless hematuria in an elderly patient is **Malignancy** (RCC or Bladder Cancer) until proven otherwise. 2. **Painful Hematuria:** Usually suggests **Calculi** (urolithiasis), **Infections** (cystitis), or **Vascular events** (infarction). 3. **Total vs. Initial vs. Terminal Hematuria:** * *Initial:* Prostatic/Urethral source. * *Terminal:* Bladder neck/Trigone source. * *Total:* Kidney/Ureter source. 4. **Renal Infarction Triad:** Flank pain, hematuria, and elevated serum LDH.

Question 312: Which of the following drugs is NOT known to produce osteonecrosis?

A. Glucocorticoids
B. Alcohol
C. Cytotoxic agents
D. NSAIDs (Correct Answer)

Explanation: **Explanation:** Osteonecrosis (Avascular Necrosis - AVN) is a condition resulting from the temporary or permanent loss of blood supply to the bone, leading to bone cell death and eventual collapse of the articular surface. **Why NSAIDs is the correct answer:** Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) are primarily used to manage the pain associated with osteonecrosis. They do not cause the condition; rather, they are part of the symptomatic treatment regimen. Unlike the other options, NSAIDs do not interfere with microcirculation or lipid metabolism in a way that leads to bone ischemia. **Analysis of Incorrect Options:** * **Glucocorticoids:** These are the most common pharmacological cause of non-traumatic osteonecrosis. They increase adipogenesis in the bone marrow, leading to increased intraosseous pressure and decreased blood flow. * **Alcohol:** Chronic alcohol consumption is a major risk factor. It causes hyperlipidemia and fat emboli, which obstruct the subchondral microcirculation. * **Cytotoxic agents:** Chemotherapeutic drugs (e.g., Methotrexate, Cisplatin) can cause direct toxicity to osteocytes or lead to a hypercoagulable state, resulting in vascular compromise. **Clinical Pearls for NEET-PG:** * **Most common site:** The **femoral head** is the most frequently affected site due to its retrograde blood supply. * **Imaging:** **MRI** is the gold standard and the most sensitive investigation for early diagnosis (detecting the "double line sign"). * **Other causes:** Sickle cell anemia (vaso-occlusive crises), Caisson disease (nitrogen bubbles), and Gaucher disease. * **Staging:** The **Ficat and Arlet classification** is commonly used to stage the progression of AVN.

Question 313: Interstitial cystitis is also known as?

A. Eosinophilic cystitis
B. Radiation cystitis
C. Hunner's cystitis (Correct Answer)
D. Tubercular cystitis

Explanation: **Explanation:** **Interstitial Cystitis (IC)**, also known as **Hunner’s cystitis** or Painful Bladder Syndrome, is a chronic inflammatory condition of the bladder wall. The hallmark of the disease is the presence of **Hunner’s ulcers** (or Hunner’s lesions), which are circumscribed, reddened mucosal areas with small vessels radiating towards a central scar. These are found in approximately 10–20% of cases during cystoscopy with hydrodistension. **Analysis of Options:** * **Option C (Correct):** IC is eponymously named Hunner’s cystitis after Guy Hunner, who first described the characteristic ulcers. It typically presents in middle-aged women with symptoms of increased frequency, urgency, and suprapubic pain that is relieved by voiding. * **Option A:** Eosinophilic cystitis is a rare inflammatory condition characterized by eosinophilic infiltration of the bladder wall, often associated with allergies or bladder injury. * **Option B:** Radiation cystitis is a complication of pelvic radiation therapy causing mucosal ischemia and fibrosis. * **Option D:** Tubercular cystitis (Secondary to Renal TB) typically results in a "thimble bladder" (small capacity, fibrotic bladder) and presents with sterile pyuria. **High-Yield Clinical Pearls for NEET-PG:** * **Diagnosis:** It is a diagnosis of exclusion. Cystoscopy may show **Glomerulations** (petechial hemorrhages) after hydrodistension. * **Biopsy:** Essential to rule out Carcinoma-in-situ (CIS), which mimics IC symptoms. * **Nerve Involvement:** There is an increased density of **Mast cells** in the detrusor muscle. * **Treatment:** First-line oral drug is **Pentosan Polysulfate Sodium** (restores the GAG layer). Intravesical instillations include DMSO or Heparin.

Question 314: Which of the following is a characteristic clinical feature of salivary duct calculi?

A. Produce pain on eating (Correct Answer)
B. Are commonest in the parotid ducts
C. Are a common cause of acute parotitis
D. Are associated with hypercalcemic states

Explanation: **Explanation:** The hallmark clinical presentation of salivary duct calculi (sialolithiasis) is **post-prandial pain and swelling**. When a person eats, the salivary glands are stimulated to produce and secrete saliva. If a stone obstructs the duct, the saliva cannot flow out, leading to a rapid increase in pressure within the gland. This causes acute, colicky pain and visible swelling (often referred to as "mealtime syndrome"), which subsides once the salivary flow decreases. **Analysis of Incorrect Options:** * **Option B:** Sialolithiasis is most common in the **Submandibular gland (80%)**, not the parotid. This is due to the submandibular duct (Wharton’s duct) being longer, having an upward course, and producing saliva that is more alkaline and richer in calcium and mucin. * **Option C:** While stones can lead to secondary infection (sialadenitis), they are not the primary cause of "acute parotitis." Acute parotitis is more commonly viral (Mumps) or bacterial (Staph. aureus) in dehydrated patients. * **Option D:** Unlike renal stones, salivary stones are **not** typically associated with systemic hypercalcemia or metabolic calcium disorders. They are usually a local phenomenon caused by stasis and debris. **High-Yield Clinical Pearls for NEET-PG:** * **Radiopacity:** 80% of submandibular stones are radiopaque (visible on X-ray), whereas 80% of parotid stones are radiolucent. * **Best Initial Imaging:** Ultrasound is often used first, but **Non-contrast CT** is the gold standard for detecting small stones. * **Management:** Small stones may pass with sialogogues (lemon drops); larger or proximal stones require **Sialendoscopy** or surgical excision.

Question 315: In a given case if the skin over a swelling is fixed to the swelling, which of the following is NOT a differential diagnosis?

A. Sebaceous cyst
B. Lipoma (Correct Answer)
C. Papilloma
D. Epithelioma

Explanation: In clinical surgery, the relationship between a swelling and the overlying skin is a critical diagnostic feature. **Why Lipoma is the Correct Answer:** A **Lipoma** is a benign tumor of adipose tissue located in the subcutaneous plane. A characteristic feature of a lipoma is that it is **not fixed to the skin**. On examination, the skin can be easily moved over the swelling. Furthermore, when the skin is pinched over a lipoma, it often exhibits "dimpling" or "puckering" (the **Slip Sign**), but the tumor itself remains mobile relative to the dermis. **Analysis of Incorrect Options:** * **Sebaceous Cyst:** These arise from the hair follicle and are located within the dermis. The hallmark clinical sign is a **punctum**, which represents the opening of the sebaceous duct. Because it is intradermal, the skin is inherently fixed to the cyst. * **Papilloma:** This is a benign epithelial tumor growing outward from the skin surface. Since it originates from the skin layers, it is by definition attached to/part of the skin. * **Epithelioma (Squamous Cell Carcinoma):** This is a malignant tumor of the epithelial cells. Malignancies of the skin or those invading the skin from deeper structures cause fixation due to infiltration and desmoplastic reactions. **High-Yield Clinical Pearls for NEET-PG:** * **Slip Sign:** Pathognomonic for Lipoma. As you gently press the edge of the swelling, it slips away from the finger. * **Punctum:** Pathognomonic for Sebaceous Cyst (Epidermoid cyst). * **Dermoid Cyst:** Unlike sebaceous cysts, these are located deep to the skin (subcutaneous) and do **not** have a punctum or skin fixation. * **Fixity to deeper structures:** Tested by contracting the underlying muscle (e.g., Pectoralis major for breast lumps). If the lump becomes less mobile upon muscle contraction, it is fixed to the muscle/fascia.

Question 316: Initial periumbilical pain shifting to the right iliac fossa is a symptom suggestive of which condition?

A. Abdominal worms
B. Mesenteric ischemia
C. Acute appendicitis (Correct Answer)
D. Right ureteric colic

Explanation: **Explanation:** The classic migration of pain described—starting in the periumbilical region and shifting to the right iliac fossa (RIF)—is known as **Murphy’s triad** (pain, followed by vomiting, then fever) and is a hallmark of **Acute Appendicitis**. **Pathophysiology:** 1. **Visceral Pain:** Initial obstruction of the appendiceal lumen causes distension. This stimulates visceral afferent pain fibers (T8–T10), resulting in vague, poorly localized pain in the **periumbilical area**. 2. **Somatic Pain:** As the inflammation progresses to involve the overlying parietal peritoneum, the pain becomes sharp and well-localized to the **Right Iliac Fossa** (specifically McBurney’s point). **Analysis of Incorrect Options:** * **Abdominal Worms:** Usually present with vague abdominal discomfort, distension, or intestinal obstruction (if bolus formation occurs), but lack the classic migratory pain pattern. * **Mesenteric Ischemia:** Typically presents as "pain out of proportion to physical findings." It is usually diffuse and sudden, often in elderly patients with cardiovascular risk factors. * **Right Ureteric Colic:** Characterized by sudden, agonizing "loin to groin" pain. It is spasmodic (colicky) and often associated with hematuria, rather than a shift from the umbilicus. **NEET-PG High-Yield Pearls:** * **McBurney’s Point:** Located at the junction of the lateral 1/3rd and medial 2/3rd of a line joining the umbilicus to the Right Anterior Superior Iliac Spine (ASIS). * **Rovsing’s Sign:** Pressure on the Left Iliac Fossa causes pain in the RIF. * **Alvarado Score (MANTRELS):** A clinical scoring system used to diagnose appendicitis (Score ≥7 suggests surgery). * **Most common position of Appendix:** Retrocecal (74%). * **Investigation of Choice:** Contrast-Enhanced CT (CECT) is the gold standard in adults; Ultrasound is preferred in children and pregnant women.

Question 317: What does a Foley's Catheter of size 16 Fr indicate?

A. 16 mm diameter at the tip
B. 16 mm inner diameter
C. 16 mm outer diameter
D. 16 French gauge (Correct Answer)

Explanation: **Explanation:** The sizing of urinary catheters, including the Foley’s catheter, is measured using the **French scale (Fr)**, also known as the Charrière (Ch) scale. This scale represents the **outer circumference** of the catheter in millimeters. **1. Why the Correct Answer is Right:** Option D is correct because "16 Fr" specifically refers to the **16 French gauge**. The mathematical relationship is defined as **1 Fr = 1/3 mm (0.33 mm)** of the outer diameter. Therefore, a 16 Fr catheter has an outer diameter of approximately 5.33 mm (16 ÷ 3). **2. Why the Incorrect Options are Wrong:** * **Option A & C:** A 16 mm diameter (inner or outer) would be excessively large for a human urethra (nearly 1.6 cm wide). The French unit measures circumference, not a direct millimeter-to-millimeter diameter. * **Option B:** The French scale always measures the **outer diameter/circumference**. The inner diameter (lumen) varies depending on the material (e.g., latex vs. silicone) and the number of channels (2-way vs. 3-way), even if the French size remains the same. **3. High-Yield Clinical Pearls for NEET-PG:** * **Color Coding:** Catheters are color-coded at the inflation port for easy identification. **Size 16 Fr is Orange**, while 14 Fr is Green and 18 Fr is Red. * **Material:** Silicone catheters are preferred for long-term use (up to 12 weeks) as they are less prone to encrustation compared to latex (up to 4 weeks). * **Coude Tip:** A catheter with a curved tip used specifically for bypassing an enlarged prostate. * **Formula:** To find the diameter in mm, divide the French size by 3 ($D = Fr / 3$).

Question 318: What is considered the normal level of Prostate-Specific Antigen (PSA)?

A. < 4 ng/ml (Correct Answer)
B. 4-7 ng/ml
C. 4-11 ng/ml
D. > 11 ng/ml

Explanation: **Explanation:** Prostate-Specific Antigen (PSA) is a glycoprotein enzyme secreted by the epithelial cells of the prostate gland. In clinical practice, it serves as a vital tumor marker for the screening, diagnosis, and monitoring of prostate cancer. **1. Why Option A is Correct:** The traditionally accepted "normal" reference range for serum PSA is **0 to 4 ng/ml**. Values below 4 ng/ml are generally considered to have a low probability of malignancy, although it is important to note that no level of PSA completely rules out prostate cancer. **2. Why Other Options are Incorrect:** * **Options B & C (4-11 ng/ml):** This range is often referred to as the **"Gray Zone."** In this interval, it is difficult to distinguish between Benign Prostatic Hyperplasia (BPH) and early-stage prostate cancer. Clinicians often use secondary markers like PSA velocity, PSA density, or the Free-to-Total PSA ratio to refine the diagnosis. * **Option D (> 11 ng/ml):** Levels above 10-11 ng/ml are considered significantly elevated and carry a high predictive value for malignancy, necessitating further investigation such as a TRUS-guided biopsy. **NEET-PG High-Yield Pearls:** * **Age-Specific PSA:** Normal ranges increase with age (e.g., <2.5 for 40s, <6.5 for 70s) due to increasing prostate volume. * **Free/Total PSA Ratio:** A ratio **<15-20%** is suspicious for malignancy, whereas a higher ratio suggests BPH. * **False Elevations:** PSA can be transiently raised by BPH, prostatitis, urinary retention, digital rectal examination (DRE), cystoscopy, or recent ejaculation. * **PSA Velocity:** An increase of **>0.75 ng/ml/year** is highly suggestive of cancer, even if the total PSA is <4 ng/ml.

Question 319: What is the commonest cause of death in carcinoma of the penis?

A. Cerebral metastasis
B. Liver metastasis
C. Uremia
D. Erosion of femoral vessels (Correct Answer)

Explanation: **Explanation:** Carcinoma of the penis is a squamous cell carcinoma that primarily spreads via the lymphatic system rather than the bloodstream. Understanding this lymphatic progression is key to identifying the cause of mortality. **Why "Erosion of femoral vessels" is correct:** The primary lymphatic drainage of the penis is to the **inguinal lymph nodes** (superficial and deep). As the disease progresses, these nodes become involved, forming large, fixed, and often ulcerated masses in the groin. These nodal masses can invade the underlying femoral triangle. The most dreaded complication is the erosion of the **femoral artery**, leading to massive, uncontrollable exsanguination (hemorrhage). This remains the leading cause of death in advanced cases. **Why the other options are incorrect:** * **Cerebral and Liver metastasis:** Hematogenous spread is rare and occurs very late in the disease course. Most patients succumb to local or regional complications before distant visceral metastases can manifest. * **Uremia:** While common in cervical or bladder cancers due to ureteric obstruction, penile cancer rarely involves the ureters. Urinary obstruction, if it occurs, is usually at the level of the distal urethra, which rarely leads to renal failure. **High-Yield Clinical Pearls for NEET-PG:** * **Staging:** The most important prognostic factor is the status of the inguinal lymph nodes. * **Sentinel Node:** The **Node of Cabanas** (sentinel node) is located medial to the epigastric vein. * **Management:** Prophylactic inguinal lymph node dissection (ILND) is often indicated because clinical examination of nodes is unreliable (50% of palpable nodes are inflammatory, while 20% of non-palpable nodes harbor micrometastasis). * **Risk Factors:** Phimosis and HPV (types 16 and 18) are strongly associated; neonatal circumcision is protective.

Question 320: Pelvic exenteration is also known as which operation?

A. Miles Operation
B. Lloyds operation
C. Finch operation
D. Brunschwig operation (Correct Answer)

Explanation: **Explanation:** **Pelvic exenteration** is a radical surgical procedure involving the removal of all pelvic viscera, including the urinary bladder, urethra, rectum, and reproductive organs. It is primarily indicated for locally advanced or recurrent pelvic malignancies (such as cervical, rectal, or pelvic soft tissue cancers) that have not spread distantly. 1. **Why Option D is Correct:** The procedure was first described and popularized by **Alexander Brunschwig** in 1948. Originally intended as a palliative measure for advanced cervical cancer, it is now performed with curative intent in selected patients. Therefore, pelvic exenteration is eponymously known as the **Brunschwig operation**. 2. **Why Other Options are Incorrect:** * **Miles Operation:** This refers to **Abdominoperineal Resection (APR)**, used for low rectal cancers. It involves the removal of the sigmoid colon, rectum, and anus with a permanent colostomy, but it does not involve the removal of the bladder or other pelvic organs unless specifically modified. * **Lloyd-Davies Operation:** This is a variation of the synchronous combined approach for APR where the patient is placed in a specific lithotomy-Trendelenburg position (Lloyd-Davies position) to allow two surgical teams to work simultaneously. * **Finch Operation:** This is not a standard surgical eponym in urology or oncology; it is likely a distractor. **High-Yield Clinical Pearls for NEET-PG:** * **Total Pelvic Exenteration:** Removal of both anterior (bladder) and posterior (rectum) compartments. * **Anterior Exenteration:** Removal of the bladder and reproductive organs (rectum spared). * **Posterior Exenteration:** Removal of the rectum and reproductive organs (bladder spared). * **Key Requirement:** The procedure requires a urinary diversion (e.g., Ileal conduit/Bricker’s loop) and a permanent colostomy. * **Contraindication:** Presence of extra-pelvic metastasis or involvement of the pelvic sidewall (though modern vascular grafting has modified this).

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Urological Anatomy

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Hematuria Evaluation

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Urinary Calculi

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Benign Prostatic Hyperplasia

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Prostate Cancer

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Bladder Cancer

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Renal Cell Carcinoma

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Testicular Tumors

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Urinary Tract Infections

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Urinary Incontinence

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Urology — MCQs

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