Urology — MCQs

Urology Indian Medical PG Practice Questions and MCQs

Question 831: A 60-year-old male with diabetes, hypertension, and second-grade prostatism is admitted for prostatectomy. He developed myocardial infarction. What is the appropriate treatment now?

A. Finasteride
B. Terazocin (Correct Answer)
C. Finasteride and terazocin
D. Diethyl stilbestrol

Explanation: **Explanation:** The patient presents with symptomatic benign prostatic hyperplasia (BPH) complicated by a recent myocardial infarction (MI). In the setting of a recent MI, elective surgery (prostatectomy) is contraindicated for at least 6 months due to high perioperative cardiac risk. Therefore, the management must shift to medical therapy. **Why Terazocin is the correct choice:** Terazocin is an **alpha-1 adrenergic blocker**. It works by relaxing the smooth muscles of the bladder neck and prostatic urethra, providing **rapid symptomatic relief** (within 48–72 hours). In a patient with hypertension and a recent MI, alpha-blockers are preferred as they provide immediate relief of "dynamic" obstruction. While tamsulosin is more uro-selective, terazocin is a classic choice in exams for patients with concomitant hypertension. **Why other options are incorrect:** * **Finasteride:** This is a 5-alpha reductase inhibitor. It reduces the "static" component by shrinking the prostate volume. However, it takes **6 months** to show clinical efficacy. It is not ideal for immediate relief in a patient whose surgery was just cancelled. * **Finasteride and Terazocin:** While combination therapy (MTOPS trial) is the gold standard for long-term management of large prostates, the immediate priority post-MI is rapid symptom control, which is primarily achieved by the alpha-blocker. * **Diethylstilbestrol (DES):** This is a synthetic estrogen used in the management of advanced prostate cancer, not BPH. It is also associated with high thromboembolic and cardiovascular risks, making it contraindicated in a post-MI patient. **Clinical Pearls for NEET-PG:** * **Alpha-blockers:** First-line for rapid relief. Side effect: Orthostatic hypotension (First-dose phenomenon) and Floppy Iris Syndrome. * **5-Alpha Reductase Inhibitors:** Best for prostates >40g; they reduce the risk of AUR and the need for surgery. * **Post-MI Surgery:** Elective surgery should ideally be deferred for **6 months** to minimize the risk of re-infarction.

Question 832: Bell clapper testis predisposes to which of the following conditions?

A. Torsion of the testis (Correct Answer)
B. Varicocele
C. Cancer of the testis
D. Hydrocele

Explanation: ### Explanation **Correct Option: A. Torsion of the testis** **Underlying Concept:** The **Bell Clapper Deformity** is the most common predisposing anatomical factor for **intravaginal testicular torsion**. Normally, the tunica vaginalis attaches to the posterior surface of the testis, anchoring it and preventing rotation. In a Bell Clapper deformity, the tunica vaginalis attaches high up on the spermatic cord, leaving the testis and epididymis completely enveloped by the tunica. This allows the testis to hang freely within the tunica vaginalis (like a clapper inside a bell), making it prone to spontaneous rotation and subsequent ischemia. **Why Incorrect Options are Wrong:** * **B. Varicocele:** This is caused by the dilatation of the pampiniform plexus of veins, usually due to incompetent valves or increased pressure in the left renal vein (Nutcracker phenomenon). It is not related to the tunica vaginalis attachment. * **C. Cancer of the testis:** Risk factors include cryptorchidism (undescended testis), family history, and Klinefelter syndrome. Anatomical variations like the Bell Clapper deformity do not increase the risk of malignancy. * **D. Hydrocele:** While a hydrocele involves fluid accumulation within the tunica vaginalis, it is typically caused by a patent processus vaginalis (congenital) or an imbalance in fluid production/absorption (acquired), rather than the high attachment of the tunica. **Clinical Pearls for NEET-PG:** * **Golden Period:** Testicular salvage rates are >90% if detorsion is performed within **6 hours** of symptom onset. * **Diagnosis:** Primarily clinical; **Color Doppler Ultrasound** is the investigation of choice (shows decreased/absent blood flow). * **Management:** Surgical emergency. Since the Bell Clapper deformity is usually **bilateral**, a **bilateral orchidopexy** (fixation of both testes) must be performed to prevent future torsion on the contralateral side. * **Reflex:** The **Cremasteric reflex** is characteristically absent in testicular torsion.

Question 833: All of the following are true about Carcinoma Penis except?

A. Spreads hematogenously
B. Most common type is verrucous carcinoma (Correct Answer)
C. Slowly progressive
D. Leads to erosion of artery

Explanation: **Explanation:** The correct answer is **Option B** because it is a false statement. The most common histological type of penile cancer is **Squamous Cell Carcinoma (SCC)**, accounting for over 95% of cases. **Verrucous carcinoma** (also known as Buschke-Löwenstein tumor) is a specific, well-differentiated variant of SCC that is locally aggressive but rarely metastasizes. **Analysis of other options:** * **Option A (Spreads hematogenously):** While the primary route of spread for penile cancer is lymphatic (to inguinal nodes), distant hematogenous spread can occur in advanced stages (Stage IV), typically involving the lungs, liver, or bones. * **Option C (Slowly progressive):** Carcinoma penis is generally a slow-growing malignancy. It often starts as a small lesion or ulcer on the glans or prepuce and progresses over months or years. * **Option D (Leads to erosion of artery):** In advanced, untreated cases, the tumor can locally invade deep structures. Erosion into the **femoral artery** (often due to massive inguinal nodal involvement) is a known terminal complication leading to exsanguination. **High-Yield Clinical Pearls for NEET-PG:** * **Risk Factors:** Phimosis (most important), HPV 16 & 18, smoking, and lack of neonatal circumcision. * **Lymphatic Drainage:** The glans and shaft drain first to the **superficial inguinal nodes**. * **Sentinel Node:** The **Node of Cloquet** (deep inguinal) is a key landmark. * **Staging:** The Jackson Staging or TNM system is used. * **Management:** Small lesions may be treated with organ-preserving surgery (glansectomy); advanced cases require partial or total penectomy with Ilio-inguinal lymph node dissection.

Question 834: Which of the following conditions does NOT predispose to torsion of the testis?

A. Inversion of the testis
B. Epididymo-orchitis (Correct Answer)
C. High investment of the tunica vaginalis
D. Separation of the epididymis from the body of the testis

Explanation: **Explanation:** Testicular torsion is a surgical emergency caused by the twisting of the spermatic cord, leading to vascular compromise. For torsion to occur, there must be **abnormal mobility** of the testis within the scrotum. **Why Epididymo-orchitis is the correct answer:** Epididymo-orchitis is an **inflammatory condition**, not a predisposing anatomical factor. In fact, the inflammatory process leads to adhesions and inflammatory edema between the layers of the tunica vaginalis and the scrotal wall. These adhesions effectively "fix" the testis in place, making it **less likely** to twist. Clinically, it is the primary differential diagnosis for torsion (distinguished by a positive Prehn’s sign). **Analysis of predisposing factors (Incorrect Options):** * **High investment of the tunica vaginalis:** This is the most common cause, known as the **"Bell-clapper deformity."** When the tunica vaginalis attaches high up on the spermatic cord, the testis hangs freely like a clapper in a bell, allowing it to rotate. * **Inversion of the testis:** If the testis is situated abnormally (e.g., horizontal lie), the axis of rotation is altered, increasing the risk of twisting. * **Separation of the epididymis from the testis:** An increased distance or elongated mesorchium between the testis and epididymis creates a "long stalk" effect, facilitating torsion. **NEET-PG High-Yield Pearls:** * **Golden Period:** Salvage rate is nearly 100% if detorsion occurs within **6 hours**. * **Prehn’s Sign:** Elevation of the scrotum relieves pain in epididymo-orchitis but **not** in torsion (Negative Prehn's sign). * **Investigation of Choice:** Color Doppler Ultrasound (shows absent or decreased blood flow). * **Management:** Emergency surgical exploration and **bilateral orchidopexy** (fixation), as the anatomical defect is usually bilateral.

Question 835: Which one of the following gastrointestinal disorders predisposes to urolithiasis?

A. Peutz-Jeghers syndrome
B. Short bowel syndrome (Correct Answer)
C. Familial polyposis coli
D. Ulcerative colitis

Explanation: **Explanation:** The correct answer is **Short bowel syndrome (SBS)**. The primary mechanism linking gastrointestinal disorders to urolithiasis is **Enteric Hyperoxaluria**, which leads to the formation of **Calcium Oxalate stones**. **Mechanism in Short Bowel Syndrome:** 1. **Fat Malabsorption:** In SBS or ileal resection, bile salts are not reabsorbed, leading to fat malabsorption. Unabsorbed fatty acids bind to calcium in the gut (saponification). 2. **Increased Oxalate Absorption:** Normally, calcium binds to dietary oxalate in the gut to form insoluble calcium oxalate, which is excreted in feces. When calcium is "busy" binding to fats, free oxalate remains soluble and is hyper-absorbed in the colon. 3. **Stone Formation:** This excess oxalate is excreted by the kidneys (hyperoxaluria), where it precipitates with urinary calcium to form stones. **Analysis of Incorrect Options:** * **Peutz-Jeghers Syndrome:** An autosomal dominant disorder characterized by hamartomatous polyps and mucocutaneous pigmentation. It increases the risk of GI and extra-intestinal malignancies but has no direct link to stone formation. * **Familial Polyposis Coli (FAP):** Characterized by hundreds of adenomatous colorectal polyps. While associated with extra-colonic manifestations (Gardner syndrome), it does not cause the malabsorption required for enteric hyperoxaluria. * **Ulcerative Colitis (UC):** While UC is an Inflammatory Bowel Disease (IBD), it primarily affects the colon. **Crohn’s Disease** (specifically involving the terminal ileum) is the IBD strongly associated with oxalate stones due to malabsorption. UC is more rarely associated with uric acid stones due to dehydration from chronic diarrhea, but SBS is the classic and more potent predisposition. **NEET-PG High-Yield Pearls:** * **Most common stone in SBS:** Calcium Oxalate. * **The "Colon" Requirement:** Enteric hyperoxaluria only occurs if the **colon is intact**, as that is the site of excess oxalate absorption. * **Treatment:** Low-oxalate diet, increased fluid intake, and oral Calcium Citrate (to bind oxalate in the gut).

Question 836: Ureteral tumors occur most frequently in which part of the ureter?

A. Upper one-third
B. Middle one-third
C. Lower one-third (Correct Answer)
D. Equally along the length

Explanation: **Explanation:** Primary ureteral tumors (most commonly **Transitional Cell Carcinomas**) are relatively rare compared to bladder tumors but follow a specific distribution pattern. **Why the Lower One-Third is Correct:** The incidence of ureteral tumors increases as you move distally along the urinary tract. Approximately **70% of all ureteral tumors** occur in the **lower one-third (distal ureter)**. This is primarily attributed to the "field effect" theory of urothelial malignancy: the distal segments of the ureter have a larger surface area of urothelium exposed to concentrated urinary carcinogens for a longer duration due to gravity and the physiological slowing of bolus transport near the vesicoureteric junction. **Analysis of Incorrect Options:** * **Upper one-third (A):** Only about 15-20% of tumors occur here. While it is the second most common site, it is significantly less frequent than the distal segment. * **Middle one-third (B):** This segment accounts for roughly 10-15% of cases, making it the least common site for primary ureteral malignancy. * **Equally along the length (D):** Ureteral tumors do not show a uniform distribution; there is a clear predilection for the distal segment. **High-Yield Clinical Pearls for NEET-PG:** * **Most common histology:** Transitional Cell Carcinoma (TCC) / Urothelial Carcinoma (>90%). * **Most common symptom:** Painless gross hematuria (75% of cases). * **Dietl’s Crisis:** Can occur if the tumor causes intermittent hydronephrosis. * **Bergman’s Sign (Cobblestone sign):** On retrograde pyelography, the catheter coils in the dilated ureter distal to the tumor. * **Association:** Patients with ureteral TCC have a 30-50% chance of developing synchronous or metachronous bladder cancer. Always perform a cystoscopy during workup.

Question 837: High inguinal orchidectomy specimen showed tumor testis with involvement of epididymis without vascular invasion; what is the stage?

A. T1 (Correct Answer)
B. T2
C. T3
D. T4

Explanation: This question tests your knowledge of the **AJCC TNM Staging (8th Edition)** for testicular tumors. The staging of primary testicular tumors (pT) is unique because it depends heavily on the anatomical structures involved and the presence of lymphovascular invasion (LVI). ### **Explanation of the Correct Answer** **Option A (T1) is correct** because, according to the AJCC 8th edition, a tumor limited to the testis and **epididymis** without vascular/lymphatic invasion is classified as **pT1**. * **Key Concept:** Involvement of the epididymis or the tunica albuginea (but not the tunica vaginalis) does not upgrade the stage beyond T1, provided there is no lymphovascular invasion. ### **Analysis of Incorrect Options** * **Option B (T2):** This stage is assigned if there is **lymphovascular invasion (LVI)** OR if the tumor invades the **tunica vaginalis**. Since the question explicitly states "without vascular invasion" and mentions only the epididymis, it cannot be T2. * **Option C (T3):** This stage is reserved for tumors that invade the **spermatic cord**, with or without vascular invasion. * **Option D (T4):** This stage is assigned when the tumor invades the **scrotum**. ### **High-Yield Clinical Pearls for NEET-PG** 1. **Route of Surgery:** Always perform a **High Inguinal Orchidectomy**. A trans-scrotal biopsy or orchidectomy is contraindicated as it alters the lymphatic drainage from para-aortic nodes to inguinal nodes (Scrotal Seeding). 2. **TNM Distinction:** * **pT1:** Testis, Epididymis, or Tunica Albuginea (No LVI). * **pT2:** Presence of **LVI** OR involvement of **Tunica Vaginalis**. 3. **Serum Markers (S):** Testicular cancer is unique because the TNM stage includes "S" (Serum tumor markers: AFP, hCG, and LDH). 4. **Lymphatic Drainage:** Testis drains to **Para-aortic nodes** (at the level of L2), while the Scrotum drains to **Superficial Inguinal nodes**.

Question 838: All of the following skin conditions are considered as skin markers for internal malignancy except?

A. Acanthosis nigricans
B. Dermatomyositis
C. Bullous pemphigoid
D. Pemphigus vulgaris (Correct Answer)

Explanation: **Explanation:** The question tests the knowledge of **Paraneoplastic Syndromes**, specifically cutaneous markers associated with internal malignancies. **Pemphigus vulgaris (Option D)** is an autoimmune blistering disease caused by antibodies against desmoglein 1 and 3. While it is a severe condition, it is **not** typically considered a marker for internal malignancy. In contrast, *Paraneoplastic Pemphigus* (a distinct entity) is associated with lymphoreticular malignancies, but the classic Pemphigus vulgaris is not. **Analysis of Incorrect Options:** * **Acanthosis nigricans (Option A):** While often associated with insulin resistance, the sudden onset of "Malignant Acanthosis Nigricans" (especially involving the palms/tripe palms) is a classic marker for **Gastric Adenocarcinoma**. * **Dermatomyositis (Option B):** This inflammatory myopathy has a strong association with internal cancers (especially ovarian, lung, and breast) in about 10-25% of adult cases. * **Bullous pemphigoid (Option C):** While primarily an autoimmune disease of the elderly, it is frequently listed as a potential paraneoplastic marker, particularly for neurological or hematological malignancies. **High-Yield Clinical Pearls for NEET-PG:** * **Leser-Trélat Sign:** Sudden eruption of multiple seborrheic keratoses; strongly associated with GI malignancies. * **Sweet Syndrome:** Acute febrile neutrophilic dermatosis; associated with Acute Myeloid Leukemia (AML). * **Necrolytic Migratory Erythema:** The hallmark cutaneous marker for a **Glucagonoma** (Alpha-cell tumor of the pancreas). * **Sister Mary Joseph Nodule:** A palpable nodule at the umbilicus representing metastasis from an intra-abdominal malignancy (usually gastric).

Question 839: Which of the following is a complication of obesity?

A. Venous ulcer (Correct Answer)
B. Pulmonary embolism
C. Mortality
D. Prostate cancer

Explanation: **Explanation:** Obesity is a significant risk factor for various surgical and medical complications. The correct answer is **Venous ulcer** because obesity leads to chronic venous insufficiency (CVI) through several mechanisms. Increased intra-abdominal pressure in obese individuals impairs venous return from the lower limbs, leading to venous hypertension. This results in valvular incompetence, skin changes (lipodermatosclerosis), and eventually, the formation of venous ulcers, typically located in the "gaiter area" of the leg. **Analysis of Options:** * **B. Pulmonary embolism:** While obesity is a known risk factor for Deep Vein Thrombosis (DVT) and subsequent Pulmonary Embolism (PE), in the context of standard surgical MCQ patterns, "Venous ulcer" is considered a direct chronic cutaneous complication of the altered hemodynamics caused by truncal obesity. * **C. Mortality:** Mortality is an *outcome* or a consequence of complications, rather than a specific clinical complication itself. * **D. Prostate cancer:** While obesity is linked to more aggressive forms of prostate cancer and higher recurrence rates, it is not a primary causative complication in the same direct physiological manner as venous stasis. **NEET-PG High-Yield Pearls:** * **Obesity and Surgery:** Obese patients have a higher risk of wound infections, incisional hernias, and atelectasis. * **Pickwickian Syndrome:** Also known as Obesity Hypoventilation Syndrome, characterized by BMI >30, daytime hypercapnia, and sleep apnea. * **Venous Ulcers:** These are typically painless (unless infected), shallow, with irregular borders, and associated with "champagne bottle" leg deformity. * **Bariatric Surgery Criteria:** Indicated if BMI >40 or BMI >35 with comorbidities (Indian guidelines often use lower thresholds: BMI >37.5 or >32.5 with comorbidities).

Question 840: An elderly female patient presented with hematuria and on imaging was found to have stage T2 transitional cell carcinoma of the bladder. Which of the following statements about the management of her condition is true?

A. History of smoking is a significant risk factor.
B. Cystoscopic fulguration may be used for superficial tumors but not typically for stage T2.
C. Chemotherapy may have a role in neoadjuvant or adjuvant settings.
D. There is a substantial chance of requiring cystectomy within 5 years after transurethral resection for stage T2 disease. (Correct Answer)

Explanation: **Explanation:** **1. Why Option D is Correct:** Stage **T2** Transitional Cell Carcinoma (TCC) signifies **Muscle-Invasive Bladder Cancer (MIBC)**, where the tumor has invaded the muscularis propria. For MIBC, Transurethral Resection of Bladder Tumor (TURBT) alone is insufficient because it is not curative; the risk of recurrence and progression is extremely high. Standard management for T2 disease is **Radical Cystectomy**. Even if a patient undergoes an initial aggressive TURBT, there is a substantial likelihood (often cited over 50%) that they will require a cystectomy within 5 years due to persistent or recurrent invasive disease. **2. Analysis of Incorrect Options:** * **Option A:** While smoking is indeed the most significant risk factor for bladder cancer, the question asks for a statement regarding the **management** of her condition. Option A is a statement about etiology, not management. * **Option B:** This statement is technically true (fulguration is for Ta/T1), but in the context of NEET-PG "Single Best Answer" questions, Option D is the more definitive clinical prognostic statement regarding the specific management trajectory of T2 disease. * **Option C:** Neoadjuvant chemotherapy (NAC) is a standard of care for T2-T4a disease before cystectomy. However, like Option B, while true, it is a general management principle rather than the primary clinical outcome highlighted in standard surgical textbooks regarding the inadequacy of TURBT for T2 lesions. **3. High-Yield Clinical Pearls for NEET-PG:** * **Staging:** T1 (Subepithelial connective tissue), T2 (Muscularis propria), T3 (Perivesical fat), T4 (Adjacent organs). * **Gold Standard for T2:** Radical Cystectomy + Pelvic Lymph Node Dissection. * **Trimodal Therapy:** For those unfit for surgery, a combination of TURBT + Radiotherapy + Chemotherapy is an alternative. * **Schistosomiasis:** Associated with **Squamous Cell Carcinoma**, not TCC. * **Most common site of metastasis:** Pelvic lymph nodes, followed by liver and lungs.

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