Urology Practice Questions

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.

Q: Urinary ascites is due to which of the following?

All of the above. **Explanation:** Urinary ascites refers to the accumulation of urine within the peritoneal cavity. This occurs when there is a breach in the integrity of the urinary tract (extravasation) combined with a pressure gradient that forces urine into the abdomen. **Why "All of the Above" is Correct:** The underlying mechanism is the **leakage of urine** from any level of the urinary system into the retroperitoneal or intraperitoneal space. * **Injury to bladder during surgery (Option A):** Iatrogenic trauma (e.g., during pelvic or abdominal surgery) can cause a direct transmural tear in the bladder wall, leading to the intraperitoneal collection of urine. * **Ureteric obstruction (Option B):** Acute or chronic obstruction (e.g., by stones or tumors) increases intraluminal pressure. This can lead to a rupture of the renal pelvis or a "forniceal tear," causing urine to leak into the retroperitoneum and subsequently track into the peritoneal cavity. * **Congenital urethral atresia (Option C):** This is a classic cause in neonates. Severe distal obstruction (like Posterior Urethral Valves or Atresia) causes massive back-pressure, leading to transudation of urine across the thin bladder wall or rupture of the urinary tract. **Clinical Pearls for NEET-PG:** * **Most Common Cause in Neonates:** Posterior Urethral Valves (PUV) is the leading cause of spontaneous urinary ascites in newborns. * **Biochemical Hallmark:** The hallmark of urinary ascites is an **elevated Creatinine level in the ascitic fluid** compared to the serum Creatinine level (Fluid:Serum Creatinine ratio > 1). * **Metabolic Derangement:** Patients often present with "Pseudo-renal failure," characterized by hyponatremia, hyperkalemia, and elevated BUN/Creatinine due to the peritoneal reabsorption of urinary waste products. * **Diagnosis:** Voiding Cystourethrogram (VCUG) is the gold standard for identifying the site of leakage or obstruction in neonates.

Q: A Gray-Hack shunt is used to treat priapism. Between which structures is this shunt placed?

Proximal penis between corpus cavernosum and saphenous vein. **Explanation:** Priapism is a urological emergency characterized by a persistent, painful erection lasting more than 4 hours. When conservative measures (aspiration and sympathomimetic injection) fail, surgical shunting is required to divert blood from the engorged **corpus cavernosum** to other venous systems. **1. Why Option C is Correct:** The **Gray-Hack shunt** is a **proximal cavernoso-venous shunt**. It involves creating an anastomosis between the **corpus cavernosum and the saphenous vein** (or sometimes the deep dorsal vein). By connecting the high-pressure cavernous tissue to the systemic venous circulation, it allows the trapped deoxygenated blood to drain, thereby achieving detumescence. **2. Analysis of Incorrect Options:** * **Option A:** While the dorsal vein can be used in some cavernoso-venous shunts, the specific eponym "Gray-Hack" refers to the saphenous vein bypass. * **Options B & D:** These describe **cavernoso-spongiosum shunts**. These are typically distal shunts (e.g., **Winter’s, Ebbehoj, or Al-Ghorab**) where a communication is created between the glans (which is part of the spongiosum) and the corpora cavernosa. **3. NEET-PG High-Yield Pearls:** * **Classification of Shunts:** * **Distal (Glandulo-cavernous):** Winter (percutaneous needle), Ebbehoj (scalpel), Al-Ghorab (open excision of tunica albuginea). * **Proximal (Cavernoso-spongiosum):** Quackels shunt. * **Proximal (Cavernoso-venous):** Gray-Hack (Saphenous vein). * **First-line Treatment:** Aspiration followed by intracavernosal injection of **Phenylephrine** (alpha-1 agonist). * **Ischemic vs. Non-ischemic:** Most surgical shunts are for **Ischemic (low-flow)** priapism, which is a compartment syndrome of the penis.

Q: Mark the true statement regarding carcinoma of the bladder?

May mimic an acute UTI with irritability and hematuria.. **Explanation:** **Carcinoma of the bladder** most commonly presents as painless gross hematuria. However, in about 20% of cases, it presents with **irritative voiding symptoms** such as frequency, urgency, and dysuria (mimicking a UTI). This is particularly common in **Carcinoma in Situ (CIS)** or infiltrating tumors, where the bladder wall's integrity is compromised, leading to irritability and hematuria. **Analysis of Options:** * **Option A (Incorrect):** Globally and in India, the most common histological type is **Urothelial (Transitional Cell) Carcinoma** (>90%). Squamous cell carcinoma is less common and usually associated with chronic irritation (e.g., Schistosomiasis or long-term catheters). * **Option B (Incorrect):** The gold standard for Muscle-Invasive Bladder Cancer (MIBC) is **Radical Cystectomy**. Radiation is typically reserved for bladder preservation protocols or palliative care in patients unfit for surgery. * **Option C (Incorrect):** Intravesical agents (like BCG or Mitomycin C) are indicated only for **Non-Muscle Invasive Bladder Cancer (NMIBC)**. Once the tumor invades the detrusor muscle (T2 stage), conservative management is contraindicated due to the high risk of metastasis. **High-Yield Clinical Pearls for NEET-PG:** * **Risk Factors:** Smoking (most significant), occupational exposure to aromatic amines (Aniline dyes), and Cyclophosphamide. * **Diagnosis:** Gold standard is **Cystoscopy with biopsy**. * **Staging:** The presence of **detrusor muscle** in the biopsy specimen is crucial to differentiate between NMIBC and MIBC. * **Schistosomiasis:** Specifically linked to Squamous Cell Carcinoma of the bladder.

Q: All of the following are seen in interstitial cystitis except:

Fever. **Explanation:** Interstitial Cystitis (IC), also known as **Bladder Pain Syndrome**, is a chronic inflammatory condition of the bladder wall of unknown etiology. It primarily affects middle-aged women and is characterized by a triad of urinary frequency, urgency, and pelvic pain that is relieved by voiding. **Why Fever is the correct answer:** Interstitial cystitis is a **non-infectious** inflammatory condition. Unlike bacterial cystitis or pyelonephritis, IC does not typically present with systemic signs of infection such as fever, chills, or leukocytosis. The presence of fever should prompt a search for an alternative diagnosis, such as an active urinary tract infection (UTI) or malignancy. **Analysis of other options:** * **Hematuria:** Chronic inflammation and the presence of mucosal fissures or ulcers can lead to both microscopic and, occasionally, gross hematuria. * **Dysuria:** Patients frequently experience painful urination and significant suprapubic pain as the bladder fills. * **Linear bleeding ulcers (Hunner’s Ulcers):** This is a classic diagnostic finding seen on cystoscopy (usually under overdistension). These are not true ulcers but rather patches of red, mucosal inflammation with small vessels radiating out, which may bleed or crack (linear scars) upon bladder distension. They are typically found in the body or fundus of the bladder. **Clinical Pearls for NEET-PG:** * **Demographics:** Female to Male ratio is approximately 10:1. * **Cystoscopy Findings:** Look for **Hunner’s ulcers** (pathognomonic but seen in only 10-20%) and **Glomerulations** (pinpoint petechial hemorrhages after hydrodistension). * **Biopsy:** Characteristically shows an increased number of **Mast cells** in the detrusor muscle. * **Treatment:** First-line includes lifestyle changes; Pharmacotherapy includes **Pentosan Polysulfate Sodium** (the only FDA-approved oral drug) and Amitriptyline.

Q: According to the Weige Meyer rule of ureteral duplication, the lower pole ureter in the urinary bladder is:

Lateral and cephalad to the upper pole ureter. The **Weigert-Meyer Rule** is a fundamental principle in pediatric urology describing the anatomical relationship of duplicated ureters. In a complete ureteral duplication, the two ureters cross each other as they descend toward the bladder. ### **Mechanism of the Rule** The rule states that the ureter draining the **upper pole** of the kidney inserts into the bladder **medially and caudally** (lower) than the lower pole ureter. Conversely, the ureter draining the **lower pole** inserts **laterally and cephalad** (higher). 1. **Why Option A is Correct:** During embryological development, the lower pole ureteric bud incorporates into the bladder wall first. As the bladder grows and the trigone expands, this orifice is pulled **laterally and superiorly (cephalad)**. 2. **Why Options B, C, and D are Incorrect:** These options reverse the spatial orientation. The upper pole ureter is the one that is medial and caudal; therefore, any combination placing the lower pole ureter in those positions is anatomically incorrect according to the rule. ### **Clinical Pearls for NEET-PG** * **The "Rule of 2s" for Complications:** * **Upper Pole Ureter:** Typically ends in an **Ectopic** insertion or a **Ureterocele**. It is prone to **Obstruction**. * **Lower Pole Ureter:** Has a shorter intramural tunnel. It is prone to **Vesicoureteral Reflux (VUR)**. * **Mnemonic:** *"Lower is Lateral"* (The lower pole ureter is the lateral one). * **Exceptions:** The Weigert-Meyer rule is followed in approximately 90% of cases of complete duplication; rare exceptions exist but are not typically tested in NEET-PG.

Q: Inadvertent surgical occlusion of the ureter leads to which of the following?

Hydronephrosis. ### Explanation **Correct Option: D. Hydronephrosis** When a ureter is inadvertently occluded (e.g., during pelvic surgeries like hysterectomy), the outflow of urine from the kidney is blocked. This leads to an increase in hydrostatic pressure within the renal pelvis and calyces. As urine continues to be produced but cannot drain, the collecting system undergoes progressive dilatation, a condition known as **hydronephrosis**. If the obstruction is acute and complete, the backpressure eventually reduces the glomerular filtration rate (GFR) to protect the renal parenchyma, but the initial and hallmark anatomical change is dilatation. **Analysis of Incorrect Options:** * **A. Complete renal atrophy:** While chronic, long-standing obstruction can eventually lead to cortical thinning and "obstructive nephropathy," the immediate and primary result is dilatation (hydronephrosis), not immediate atrophy. * **B. Hematuria:** Hematuria is more commonly associated with the *cause* of an obstruction (like a stone or malignancy) or the *release* of an obstruction, rather than the occlusion itself. * **C. Renal failure:** Unilateral ureteral occlusion does not typically cause systemic renal failure (elevated creatinine) because the contralateral healthy kidney compensates. Renal failure only occurs if the obstruction is bilateral or occurs in a solitary functioning kidney. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site of ureteral injury:** The point where the ureter crosses the **uterine artery** (Water under the bridge) or at the pelvic brim near the infundibulopelvic ligament. * **Early Sign:** Postoperative flank pain and fever are early indicators of accidental ligation. * **Investigation of Choice:** An **Ultrasound** is the initial screening tool to detect hydronephrosis, while an **IVP or CT Urogram** helps localize the site of occlusion.

Q: What treatment is used for lower ureteric stones?

Endoscopic removal. **Explanation:** The management of ureteric stones depends primarily on the size and location of the calculus. For **lower ureteric stones** (distal ureter), **Endoscopic removal** via **Ureteroscopy (URS)** is the gold standard and treatment of choice. **1. Why Endoscopic Removal is Correct:** Ureteroscopy allows for direct visualization of the stone. Once identified, the stone can be extracted using a basket or fragmented (lithotripsy) if it is too large to be removed intact. It has a high success rate (stone-free rate) for distal stones compared to Extracorporeal Shock Wave Lithotripsy (ESWL), which is less effective in the bony pelvis due to localization difficulties. **2. Why Other Options are Incorrect:** * **Diuretics:** These increase urine volume but do not provide the mechanical force necessary to expel an impacted stone. In fact, they may worsen pain (renal colic) by increasing proximal hydrostatic pressure. * **Drug Dissolution:** This is only applicable for **Uric Acid stones** (using alkalinization of urine). Most ureteric stones are Calcium Oxalate, which cannot be dissolved medically. * **Laser:** While Holmium:YAG laser is the *energy source* used during endoscopy to fragment stones, "Laser" itself is a tool, not the procedure. The procedure is "Endoscopic removal" (URS). **High-Yield Clinical Pearls for NEET-PG:** * **Stone Size:** Stones ** 1 cm. * **Lower Ureter:** URS is superior to ESWL regardless of size. * **Gold Standard Investigation:** Non-Contrast Computed Tomography (NCCT) KUB.

Question 1

Orchitis without epididymitis is seen in which condition?

Accepted Answer

Syphilis

Answer

Gonorrhoea

Answer

Tuberculosis

Answer

Chlamydia infection

Question 2

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 3

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

Question 4

Urinary ascites is due to which of the following?

Accepted Answer

All of the above

Answer

Injury to bladder during surgery

Answer

Ureteric obstruction

Answer

Congenital urethral atresia

Question 5

A Gray-Hack shunt is used to treat priapism. Between which structures is this shunt placed?

Accepted Answer

Proximal penis between corpus cavernosum and saphenous vein

Answer

Dorsal vein and corpus cavernosum

Answer

Corpus spongiosum and corpus cavernosum

Answer

Corpus cavernosum and corpus spongiosum

Question 6

Mark the true statement regarding carcinoma of the bladder?

Accepted Answer

May mimic an acute UTI with irritability and hematuria.

Answer

Is primarily of squamous cell origin.

Answer

Is preferentially treated by radiation.

Answer

May be treated conservatively by use of intravesical agents even if it invades the bladder muscle.

Question 7

All of the following are seen in interstitial cystitis except:

Accepted Answer

Fever

Answer

Hematuria

Answer

Dysuria

Answer

Presence of linear bleeding ulcer in the fundus

Question 8

According to the Weige Meyer rule of ureteral duplication, the lower pole ureter in the urinary bladder is:

Accepted Answer

Lateral and cephalad to the upper pole ureter

Answer

Lateral and caudal to the upper pole ureter

Answer

Medial and cephalad to the upper pole ureter

Answer

Medial and caudal to the upper pole ureter

Question 9

Inadvertent surgical occlusion of the ureter leads to which of the following?

Accepted Answer

Hydronephrosis

Answer

Complete renal atrophy

Answer

Hematuria

Answer

Renal failure

Question 10

What treatment is used for lower ureteric stones?

Accepted Answer

Endoscopic removal

Answer

Diuretics

Answer

Drug dissolution

Answer

Laser

Urology — MCQs

Urology — MCQs

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