Urology Practice Questions

Q: What is the recommended treatment for a superficial bladder carcinoma presenting as a single papillary lesion?

Transurethral resection. ### Explanation **Correct Answer: A. Transurethral resection** **Underlying Medical Concept:** Superficial bladder cancer (Non-Muscle Invasive Bladder Cancer - NMIBC) refers to tumors confined to the mucosa (Ta, CIS) or submucosa (T1). The gold standard for both the **initial diagnosis and the primary treatment** of a single papillary lesion is **Transurethral Resection of Bladder Tumor (TURBT)**. The goal is to completely remove all visible lesions and obtain deep tissue (including the detrusor muscle) to accurately stage the disease. **Analysis of Incorrect Options:** * **B & D (Intravesical Therapy):** While intravesical immunotherapy (BCG) or chemotherapy (Mitomycin C) are crucial components of management, they are **adjuvant** treatments. They are used *after* TURBT to reduce recurrence and progression in intermediate or high-risk cases, but they cannot replace surgical resection of a visible tumor. * **C (Radical Cystectomy):** This is the treatment of choice for **muscle-invasive bladder cancer (T2 or higher)** or refractory high-risk NMIBC. It is too aggressive for a single superficial papillary lesion. **High-Yield Clinical Pearls for NEET-PG:** * **Most common histological type:** Transitional Cell Carcinoma (Urothelial Carcinoma). * **Single most important risk factor:** Smoking (followed by occupational exposure to arylamines/aniline dyes). * **The "Post-Op" Rule:** A single immediate postoperative dose of intravesical chemotherapy (e.g., Mitomycin C) within 6–24 hours of TURBT is recommended to reduce the "seeding" of tumor cells. * **Staging:** TURBT must include the **Muscularis Propria** to differentiate between T1 (superficial) and T2 (muscle-invasive) disease.

Q: Which of the following is NOT a feature of posterior urethral valve?

Painful stress incontinence. **Explanation:** **Posterior Urethral Valve (PUV)** is the most common cause of bladder outlet obstruction in male infants. It results from abnormal mucosal folds in the prostatic urethra, leading to high-pressure urinary retention. **Why "Painful Stress Incontinence" is the correct answer:** Stress incontinence refers to the involuntary leakage of urine during activities that increase intra-abdominal pressure (e.g., coughing, sneezing). In PUV, the primary mechanism of leakage is **Overflow Incontinence** (dribbling due to a chronically overdistended bladder) or **Urge Incontinence** (due to detrusor instability). Stress incontinence is typically seen in females or post-prostatectomy patients, not as a feature of PUV. **Analysis of Incorrect Options:** * **Palpable Bladder:** The obstruction causes chronic urinary retention, leading to a thick-walled, distended bladder that is often palpable on physical examination. * **Recurrent UTI:** Urinary stasis in the bladder and upper tracts provides a nidus for bacterial growth, making recurrent infections a common presentation. * **Hydronephrosis:** High intravesical pressures lead to vesicoureteral reflux (VUR) and obstructive uropathy, resulting in bilateral hydroureteronephrosis and potential renal dysplasia. **NEET-PG High-Yield Pearls:** * **Classic Presentation:** Poor urinary stream (dribbling) and a palpable midline mass in a male neonate. * **Gold Standard Investigation:** **MCUG (Micturating Cystourethrogram)** – shows a dilated posterior urethra and a "narrowing" at the level of the valves (Shield sign). * **Initial Management:** Bladder drainage via a small feeding tube (avoid Foley's if possible). * **Definitive Treatment:** Endoscopic primary valve ablation (fulguration). * **Antenatal USG Sign:** "Keyhole sign" (dilated bladder and proximal urethra).

Q: What is the most common route of infection in renal tuberculosis?

Hematogenous spread. **Explanation:** **1. Why Hematogenous Spread is Correct:** Renal tuberculosis (GU-TB) is almost always a secondary infection. The primary site is typically the lungs (or occasionally the gut). During the initial primary pulmonary infection, a subclinical bacillemia occurs, allowing *Mycobacterium tuberculosis* to seed the glomerular and peritubular capillaries of both kidneys. These bacilli form microscopic granulomas (cortical follicles) in the renal cortex. While many of these remain dormant for years, they can reactivate later, leading to clinical renal TB. Therefore, **hematogenous spread** is the definitive route of infection. **2. Why Other Options are Incorrect:** * **Ascending infection:** Unlike common bacterial UTIs (e.g., *E. coli*), TB does not travel from the urethra/bladder up to the kidneys. In GU-TB, the infection actually "descends" from the kidney to the ureter and bladder. * **Lymphatic spread:** While TB can spread via lymphatics within the lung or to regional nodes, it is not the primary mechanism for seeding the kidneys. * **Direct invasion:** This would imply spread from adjacent infected organs (like the psoas muscle or spine), which is extremely rare for renal involvement. **3. Clinical Pearls for NEET-PG:** * **"Sterile Pyuria":** The classic presentation of GU-TB is the presence of pus cells in urine with no growth on routine culture media. * **Putty Kidney:** A late-stage radiological finding (autonephrectomy) where the kidney is non-functional and filled with caseous calcification. * **Thimble Bladder:** A small-capacity, fibrotic bladder resulting from chronic TB cystitis. * **Investigation of Choice:** The gold standard for diagnosis is a **Urine Culture (Lowenstein-Jensen medium)**, typically requiring three to five early morning midstream urine samples.

Q: Which of the following is NOT an indication for circumcision?

Carcinoma of the penis. ### Explanation The correct answer is **C. Carcinoma of the penis**. **1. Why Carcinoma of the Penis is NOT an indication for circumcision:** In cases of biopsy-proven penile carcinoma, circumcision is not a definitive treatment. The management of penile cancer depends on the stage and grade of the tumor. Standard surgical treatments include **wide local excision, partial penectomy, or total penectomy** with inguinal lymph node dissection. While circumcision is a well-known **preventive measure** (it significantly reduces the risk of developing penile cancer later in life), it is not the indicated therapeutic procedure once a malignancy is established. **2. Analysis of Incorrect Options:** * **A. Chronic Balanoposthitis:** Recurrent inflammation of the glans (balanitis) and prepuce (posthitis) often leads to scarring and secondary phimosis. Circumcision is the definitive treatment to prevent recurrence. * **B. Religious Reasons:** This is a "social/ritual indication." In faiths such as Judaism (Brit Milah) and Islam, neonatal or childhood circumcision is a standard practice. * **D. Paraphimosis:** This is a urological emergency where the retracted foreskin cannot be pulled forward. While the initial management involves manual reduction or a dorsal slit, **elective circumcision** is strongly indicated afterward to prevent recurrence. **Clinical Pearls for NEET-PG:** * **Absolute Medical Indications:** Phimosis (pathological), Paraphimosis (recurrent), and Balanitis Xerotica Obliterans (BXO). * **BXO (Lichen Sclerosus):** The most common pathological cause of phimosis; circumcision is the treatment of choice. * **Protective Effect:** Circumcision reduces the risk of HIV transmission, HPV, and Urinary Tract Infections (UTIs) in infants. * **Contraindication:** Never perform circumcision in a child with **Hypospadias**, as the prepuce is required for future reconstructive surgery (urethroplasty).

Q: BCG is used in the treatment of which carcinoma?

Carcinoma of the urinary bladder. **Explanation:** **Bacillus Calmette-Guérin (BCG)**, a live-attenuated strain of *Mycobacterium bovis*, is the gold standard for **intravesical immunotherapy** in the management of **Non-Muscle Invasive Bladder Cancer (NMIBC)**, specifically high-grade Ta, T1, and Carcinoma in situ (CIS). **Why Option C is Correct:** When instilled into the bladder, BCG triggers a robust local immune response. It attaches to the urothelium via fibronectin and is internalized by bladder cancer cells. This induces the release of cytokines (IL-1, IL-2, IL-12, IFN-γ) and recruits T-lymphocytes, macrophages, and Natural Killer (NK) cells. These immune cells recognize and destroy the malignant cells, significantly reducing the risk of tumor recurrence and progression. **Why Other Options are Incorrect:** * **Option A & B:** While BCG is a potent immunomodulator, its clinical efficacy is localized. In systemic cancers like colon or cervical carcinoma, BCG has not shown therapeutic benefit compared to standard chemotherapy, radiotherapy, or targeted biologics. Its use is restricted to accessible mucosal surfaces where a localized inflammatory response can be safely contained. **High-Yield Clinical Pearls for NEET-PG:** * **Indications:** High-risk NMIBC (T1, high-grade Ta) and CIS. It is NOT used for muscle-invasive disease (T2 or higher). * **Timing:** Treatment usually starts 2–4 weeks after TURBT (Transurethral Resection of Bladder Tumor) to allow the bladder wall to heal, preventing systemic absorption. * **SWOG Protocol:** Standard induction involves once-weekly instillations for 6 weeks. * **Contraindications:** Gross hematuria, traumatic catheterization, immunosuppression, and active tuberculosis. * **Complication:** The most serious complication is **BCGosis** (systemic sepsis), treated with anti-tubercular drugs (excluding Pyrazinamide, as *M. bovis* is intrinsically resistant to it).

Q: Which of the following can invade the Inferior Vena Cava (IVC)?

Renal cell carcinoma. **Explanation:** **Renal Cell Carcinoma (RCC)**, specifically the clear cell subtype, is notorious for its unique propensity for **angioinvasion**. Unlike many other solid tumors that spread primarily via lymphatics, RCC frequently invades the renal vein and can extend as a "tumor thrombus" into the **Inferior Vena Cava (IVC)**. This occurs in approximately 4–10% of patients. The tumor grows intraluminally toward the right atrium, often without infiltrating the vessel wall itself, which sometimes allows for surgical resection (thrombectomy). **Why other options are incorrect:** * **Breast Carcinoma:** Primarily spreads via the lymphatic system (axillary nodes) and hematogenously to bones, lungs, and liver. It does not typically exhibit direct intraluminal venous extension. * **Bladder Cancer:** Spreads locally into the pelvic wall or via lymphatics to iliac nodes. While it can cause venous compression or deep vein thrombosis (DVT), it does not characteristically invade the IVC lumen. * **Head of Pancreas Cancer:** Known for invading the **Portal Vein** or Superior Mesenteric Vein (SMV) due to anatomical proximity, but it does not typically invade the IVC. **Clinical Pearls for NEET-PG:** * **Staging:** Extension into the renal vein or IVC below the diaphragm is classified as **T3a**; extension into the IVC above the diaphragm is **T3b/T3c**. * **Imaging:** The gold standard for assessing the cranial extent of an IVC thrombus is **MRI** (or Transesophageal Echo during surgery). * **Varicocele:** A left-sided varicocele that does not empty in the supine position is a classic sign of RCC obstructing the left renal vein. * **Other tumors invading IVC:** Wilms tumor, Adrenal cortical carcinoma, and Hepatocellular carcinoma (HCC).

Q: Orchitis without epididymitis is seen in which condition?

Syphilis. In urology, the spread of infection to the scrotal contents typically follows a specific anatomical route. Understanding this route is key to distinguishing between different types of scrotal infections. ### **Explanation of the Correct Answer** **Syphilis (Option C)** is the correct answer because it is a classic exception to the rule of retrograde infection. In syphilis, the infection reaches the testis via a **hematogenous route** (bloodborne). Because the spirochetes seed the testicular parenchyma directly from the blood, it presents as a painless, woody hard swelling of the testis (Gumma) while the epididymis remains unaffected. This is known as a "cold" swelling of the testis. ### **Explanation of Incorrect Options** * **Gonorrhoea (Option A) and Chlamydia (Option B):** These are the most common causes of acute epididymo-orchitis in young men. The infection spreads in a **retrograde** fashion from the urethra, through the vas deferens, to the epididymis first. The testis is involved only secondarily by direct spread. Therefore, you rarely see orchitis without preceding epididymitis. * **Tuberculosis (Option B):** Renal TB typically spreads via the urine to the prostate and then via the vas deferens to the **epididymis**. In TB, the epididymis is the primary site of involvement (often starting at the tail), and the testis is involved only in late, advanced stages. ### **High-Yield Clinical Pearls for NEET-PG** * **Mumps:** The most common cause of **isolated viral orchitis**. Like syphilis, it spreads hematogenously and spares the epididymis. * **Prehn’s Sign:** Positive (relief of pain with scrotal elevation) in epididymo-orchitis; negative in testicular torsion. * **Rule of Thumb:** If the infection is **hematogenous** (Syphilis, Mumps), it is primarily **Orchitis**. If the infection is **retrograde/ascending** (Gonorrhoea, Chlamydia, TB), it is primarily **Epididymitis**.

Q: Alkalinization of urine helps in the dissolution of which types of renal stones?

Uric acid. **Explanation:** The solubility of certain renal stones is highly dependent on urinary pH. **Uric acid stones** form in acidic urine (pH < 5.5). When the urine is alkalinized (target pH 6.5–7.0) using agents like potassium citrate or sodium bicarbonate, the uric acid is converted into its more soluble urate salt form. This increases its solubility by nearly 10-fold, allowing for the medical dissolution of existing stones and the prevention of new ones. **Analysis of Options:** * **Calcium oxalate (A):** These are the most common renal stones. Their formation is largely independent of urinary pH, and they cannot be dissolved by altering pH levels. * **Cystine (C):** While cystine solubility does increase with alkalinization, it requires a very high pH (>7.5) which is difficult to maintain and increases the risk of calcium phosphate precipitation. While alkalinization is used for *prevention*, it is less effective for *dissolution* compared to uric acid. * **Struvite (D):** Also known as "triple phosphate" or infection stones, these form in **alkaline** urine caused by urease-producing bacteria (e.g., *Proteus*). Alkalinization would worsen these stones; they require acidification for management. **High-Yield Clinical Pearls for NEET-PG:** * **Uric acid stones** are characteristically **radiolucent** on X-ray (KUB) but visible on NCCT (attenuation 7.2).

Q: Testicular cancer is common in patients with which of the following conditions?

Undescended abdominal testis. **Explanation:** The strongest risk factor for testicular germ cell tumors (GCT) is **cryptorchidism** (undescended testis). The risk is significantly higher in an **abdominal testis** compared to an inguinal testis. **1. Why Option B is Correct:** The risk of malignancy in an undescended testis is roughly **4 to 10 times** higher than in the general population. The higher the position of the undescended testis, the greater the risk; hence, an **abdominal testis** carries the highest risk (approx. 1 in 20 chance of malignancy). The increased core body temperature and dysgenetic changes in the germ cells are thought to contribute to carcinogenesis. Notably, orchiopexy performed after puberty does not reduce the risk of cancer, but it allows for easier clinical surveillance. **2. Analysis of Incorrect Options:** * **A. Ectopic testis:** While an ectopic testis is outside the scrotum, it has usually passed through the inguinal canal and is located in a superficial pouch. While it carries a risk, the relative risk is lower than that of a true intra-abdominal undescended testis. * **C. Atrophic testis:** While atrophy (due to mumps or trauma) can be associated with a slight increase in risk, it is not as statistically significant or classically associated as cryptorchidism. * **D. Anteverted testis:** This is a normal anatomical variation where the testis is rotated; it has no association with malignancy. **High-Yield Clinical Pearls for NEET-PG:** * **Most common tumor in undescended testis:** Seminoma. * **Most common tumor after orchiopexy:** Seminoma. * **Contralateral Risk:** 5–10% of patients with a history of cryptorchidism develop a tumor in the **contralateral normally descended testis**. * **Best time for Orchiopexy:** Ideally between 6 to 12 months of age to preserve fertility, though it may not eliminate the baseline cancer risk.

Question 1

What is the recommended treatment for a superficial bladder carcinoma presenting as a single papillary lesion?

Accepted Answer

Transurethral resection

Answer

Intravesical immunotherapy

Answer

Radical cystectomy

Answer

Intravesical chemotherapy

Question 2

Which of the following is NOT a feature of posterior urethral valve?

Accepted Answer

Painful stress incontinence

Answer

Palpable bladder

Answer

Recurrent UTI

Answer

Hydronephrosis

Question 3

Which of the following statements regarding bladder cancer is true?

Accepted Answer

Patients with limited lymph node involvement may be cured by surgery alone.

Answer

For patients with bladder cancer invading into the bladder muscle (T2 lesion), immediate radiotherapy followed by surgery offers the best chance of cure.

Answer

Continent neo-bladders have not yet been successfully utilized in patients undergoing cystectomy.

Answer

Intravesical chemotherapy prior to surgery is routinely used for bladder cancers invading into the bladder muscle (T2 lesion).

Question 4

What is the most common route of infection in renal tuberculosis?

Accepted Answer

Hematogenous spread

Answer

Ascending infection

Answer

Lymphatic spread

Answer

Direct invasion

Question 5

Which of the following is NOT an indication for circumcision?

Accepted Answer

Carcinoma of the penis

Answer

Chronic balanoposthitis

Answer

Religious reasons (e.g., Jewish faith)

Answer

Paraphimosis

Question 6

BCG is used in the treatment of which carcinoma?

Accepted Answer

Carcinoma of the urinary bladder

Answer

Carcinoma of the colon

Answer

Carcinoma of the cervix

Answer

All of the above

Question 7

Which of the following can invade the Inferior Vena Cava (IVC)?

Accepted Answer

Renal cell carcinoma

Answer

Breast carcinoma

Answer

Bladder cancer

Answer

Head of Pancreas cancer

Question 8

Orchitis without epididymitis is seen in which condition?

Accepted Answer

Syphilis

Answer

Gonorrhoea

Answer

Tuberculosis

Answer

Chlamydia infection

Question 9

Alkalinization of urine helps in the dissolution of which types of renal stones?

Accepted Answer

Uric acid

Answer

Calcium oxalate

Answer

Cystine

Answer

Struvite

Question 10

Testicular cancer is common in patients with which of the following conditions?

Accepted Answer

Undescended abdominal testis

Answer

Ectopic testis

Answer

Atrophic testis

Answer

Anteverted testis

Urology — MCQs

Urology — MCQs

On this page

Practice by Chapter

Want unlimited practice?