Urology Practice Questions

Q: Which paraneoplastic syndrome is NOT typically seen in renal cell carcinoma?

Acanthosis nigricans. Renal Cell Carcinoma (RCC) is famously known as the **"Internist’s Tumor"** because it can present with a wide array of paraneoplastic syndromes (PNS) due to the ectopic secretion of various hormones and cytokines. **Why Acanthosis Nigricans is the Correct Answer:** Acanthosis nigricans (velvety hyperpigmentation in skin folds) is a cutaneous marker of internal malignancy, but it is most strongly associated with **gastric adenocarcinoma** and other GI malignancies. It is **not** a typical feature of RCC. **Explanation of Incorrect Options (Common PNS in RCC):** * **Polycythemia (Option C):** This is a classic PNS in RCC caused by the ectopic production of **Erythropoietin (EPO)**. It occurs in about 1-5% of patients. * **Hypercalcemia (Option D):** This is the most common metabolic PNS in RCC. It is usually caused by the secretion of **Parathyroid Hormone-related Protein (PTHrP)**, mimicking primary hyperparathyroidism. * **Amyloidosis (Option B):** Chronic inflammation associated with RCC can lead to **Secondary (AA) Amyloidosis**, which may present as nephrotic syndrome in the contralateral kidney. **High-Yield Clinical Pearls for NEET-PG:** * **Stauffer’s Syndrome:** Reversible hepatic dysfunction (elevated LFTs) in the absence of liver metastases; a unique PNS of RCC. * **Hypertension:** Often caused by increased **Renin** production. * **Cushing’s Syndrome:** Rarely occurs due to ectopic **ACTH** production. * **Classic Triad:** Hematuria, flank pain, and palpable mass (seen in only 10% of cases, usually indicates advanced disease).

Q: What is the TNM staging for penile carcinoma extending up to the urethra?

T3. The TNM staging of penile carcinoma is a high-yield topic for NEET-PG, specifically focusing on the depth of anatomical invasion. ### **Explanation of the Correct Answer** According to the **AJCC 8th Edition** for Penile Cancer, the staging is determined by the specific structures the tumor invades: * **T3** is defined as a tumor that invades the **urethra**. * The anatomical progression moves from the glans/prepuce (T1) to the corpus spongiosum/cavernosum (T2), and finally to the **urethra (T3)**. Since the question specifies extension up to the urethra, **T3** is the correct stage. ### **Analysis of Incorrect Options** * **A. T1:** The tumor invades the subepithelial connective tissue (lamina propria) without lymphovascular invasion or perineural invasion and is not high-grade. * **D. T2:** The tumor invades the **corpus spongiosum** (with or without urethral invasion) or **corpus cavernosum**. *Note: In the 8th edition, invasion of the corpus spongiosum alone is T2, but invasion of the urethra specifically elevates it to T3.* * **C. T4:** The tumor invades other adjacent structures such as the **scrotum, prostate, or pubic bone**. ### **High-Yield Clinical Pearls for NEET-PG** 1. **N-Staging Nuance:** N1 is a single mobile inguinal lymph node; N2 is multiple or bilateral mobile inguinal nodes; **N3** is a fixed nodal mass or pelvic lymphadenopathy. 2. **Most Common Histology:** Squamous Cell Carcinoma (SCC) is the most common type. 3. **Risk Factors:** Phimosis (most significant), HPV (types 16, 18), and smoking. Circumcision in infancy is protective. 4. **Erythroplasia of Queyrat:** This is CIS (Carcinoma in situ) of the glans or prepuce, which corresponds to **Tis**.

Q: What is the most important use of transrectal ultrasonography (TRUS)?

Systematic prostate biopsy in suspected prostate cancer. **Explanation:** The primary and most important clinical utility of **Transrectal Ultrasonography (TRUS)** in modern urology is to provide real-time image guidance for performing **systematic prostate biopsies**. While TRUS can visualize the zonal anatomy of the prostate, its sensitivity and specificity for identifying malignant lesions are relatively low. Therefore, its role is not to diagnose cancer based on imaging alone, but to ensure that biopsy needles are accurately and systematically distributed throughout the gland (typically a 12-core biopsy) to obtain tissue for histopathological diagnosis. **Analysis of Options:** * **Option A:** TRUS is **not** a screening tool. Screening for prostate cancer is primarily done using Digital Rectal Examination (DRE) and Serum PSA levels. * **Option B:** TRUS cannot reliably distinguish between BPH and cancer. Many prostate cancers are isoechoic (invisible on USG), and many hypoechoic lesions turn out to be prostatitis or infarcts rather than malignancy. * **Option D:** Transurethral Resection of the Prostate (TURP) is an endoscopic procedure guided by direct vision through a cystoscope, not by ultrasound. **Clinical Pearls for NEET-PG:** * **Classic Appearance:** On TRUS, prostate cancer typically appears as a **hypoechoic lesion** in the **peripheral zone**, though this is not pathognomonic. * **Gold Standard for Diagnosis:** Systematic TRUS-guided biopsy remains the standard for diagnosing prostate cancer when PSA is elevated or DRE is abnormal. * **Emerging Trend:** Multiparametric MRI (mpMRI) followed by **MRI-TRUS Fusion Biopsy** is now preferred for better localization of suspicious lesions compared to TRUS alone.

Q: Which of the following is NOT an indication for surgery in BPH?

International Prostate Symptom Score (IPSS) of 8. In Benign Prostatic Hyperplasia (BPH), the decision to proceed with surgery (typically TURP) is based on the presence of **absolute indications** or the failure of medical management. ### **Why Option D is the Correct Answer** The **International Prostate Symptom Score (IPSS)** is used to categorize the severity of lower urinary tract symptoms (LUTS). * **0–7:** Mild symptoms * **8–19:** Moderate symptoms * **20–35:** Severe symptoms An IPSS of 8 falls into the **moderate** category. For patients with moderate symptoms, the first line of management is typically **medical therapy** (e.g., Alpha-blockers or 5-Alpha-reductase inhibitors) or watchful waiting, rather than immediate surgery. ### **Analysis of Incorrect Options (Absolute Indications for Surgery)** * **A. Chronic Urine Retention:** Persistent or recurrent retention despite catheterization indicates bladder outlet obstruction that requires surgical relief. * **B. Multiple UTIs:** Recurrent infections suggest significant post-void residual urine acting as a nidus for bacteria, necessitating surgery. * **C. Bilateral Hydronephrosis:** This indicates high-pressure chronic retention leading to obstructive uropathy and potential renal failure. It is a critical indication for surgery to preserve kidney function. ### **NEET-PG High-Yield Clinical Pearls** * **Absolute Indications for Surgery (Mnemonic: "H-R-R-B-S"):** 1. **H**ydronephrosis (Obstructive uropathy/Renal failure) 2. **R**etention (Refractory/Recurrent) 3. **R**ecurrent UTIs 4. **B**ladder Stones (Vesical calculi) 5. **S**evere Hematuria (Recurrent/Gross) * **Gold Standard Surgery:** Transurethral Resection of the Prostate (TURP). * **Size Consideration:** For glands >80–100g, Open Prostatectomy or HoLEP (Holmium Laser Enucleation) is preferred over TURP.

Q: Which of the following is NOT an indication for surgery in benign prostatic hypertrophy?

A large prostate gland alone. In Benign Prostatic Hyperplasia (BPH), the decision to operate is based on **symptoms and complications**, not the physical size of the gland. ### Why "A large prostate gland alone" is the correct answer: The size of the prostate does not correlate directly with the severity of bladder outlet obstruction (BOO). A patient may have a massively enlarged prostate (e.g., 100g) but remain asymptomatic if the growth is peripheral. Conversely, a small median lobe can cause significant obstruction. Surgery is indicated only when the enlargement causes physiological distress or end-organ damage. ### Explanation of Incorrect Options (Indications for Surgery): * **Prostatism (Option A):** This refers to bothersome Lower Urinary Tract Symptoms (LUTS) that fail medical management (Alpha-blockers/5-ARIs). If symptoms significantly impair the patient's quality of life, surgery (like TURP) is indicated. * **Chronic Urinary Retention (Option B):** Persistent retention leads to increased intravesical pressure, which can cause hydroureteronephrosis and renal failure (post-renal azotemia). This is an absolute indication for surgery. * **Recurrent Gross Hematuria (Option C):** BPH causes friable neovascularization on the prostatic surface. If bleeding is recurrent or severe enough to cause clot retention, surgical intervention is required. ### High-Yield Clinical Pearls for NEET-PG: * **Absolute Indications for Surgery (Mnemonic: "H-R-R-S-B"):** 1. **H**ematuria (Recurrent/Severe) 2. **R**enal insufficiency (due to BPH) 3. **R**etention (Refractory to catheterization) 4. **S**tones (Bladder calculi) 5. **B**ladder Diverticula or recurrent UTIs. * **Gold Standard Treatment:** Transurethral Resection of the Prostate (TURP). * **Size Threshold:** For glands >80-100g, Open Prostatectomy or HoLEP (Holmium Laser Enucleation) is often preferred over TURP.

Question 1

Which paraneoplastic syndrome is NOT typically seen in renal cell carcinoma?

Accepted Answer

Acanthosis nigricans

Answer

Amyloidosis

Answer

Polycythemia

Answer

Hypercalcemia

Question 2

What does strangury mean?

Accepted Answer

Extreme wretching sensation at the end of micturition causing distress

Answer

Painless terminal hematuria

Answer

Painful hematuria

Answer

Pain during micturition

Question 3

A 34-year-old male undergoes vasectomy. Which of the following is the most frequent immediate complication of this procedure?

Accepted Answer

Hematoma

Answer

Infection

Answer

Impotence

Answer

Spontaneous reanastomosis

Question 4

A renal collar is used to prevent the spread of malignancy from the kidney. Around which structure is this collar placed?

Accepted Answer

Renal vein

Answer

Aorta

Answer

Inferior Vena Cava (IVC)

Answer

Renal artery

Question 5

What is the ideal surgical approach for renal malignancy?

Accepted Answer

Transperitoneal

Answer

Retroperitoneal

Answer

Lumbar incision

Answer

Abdominothoracic incision

Question 6

Varicocele is common on the left testis because:

Accepted Answer

The left testicular vein drains into the left renal vein, which has high pressure.

Answer

The left testicular vein drains into the inferior vena cava, which has high pressure.

Answer

The left testis is situated lower.

Answer

Compression of the testicular vein by the rectum.

Question 7

What is the TNM staging for penile carcinoma extending up to the urethra?

Accepted Answer

T3

Answer

T1

Answer

T4

Answer

T2

Question 8

What is the most important use of transrectal ultrasonography (TRUS)?

Accepted Answer

Systematic prostate biopsy in suspected prostate cancer

Answer

Screening for prostate cancer

Answer

Distinguishing prostate cancer from benign prostatic hyperplasia (BPH)

Answer

Guiding transurethral resection of prostate cancer

Question 9

Which of the following is NOT an indication for surgery in BPH?

Accepted Answer

International Prostate Symptom Score (IPSS) of 8

Answer

Chronic urine retention

Answer

Multiple urinary tract infections (UTIs)

Answer

Bilateral hydronephrosis

Question 10

Which of the following is NOT an indication for surgery in benign prostatic hypertrophy?

Accepted Answer

A large prostate gland alone

Answer

Prostatism

Answer

Chronic urinary retention

Answer

Recurrent gross hematuria

Urology — MCQs

Urology — MCQs

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