Urology Practice Questions

Q: What is the commonest cause of ureteric injury during surgical operation?

Hysterectomy. **Explanation:** Ureteric injury is a significant complication of pelvic and abdominal surgeries. **Hysterectomy** (Option B) is the most common cause, accounting for over 50% of all iatrogenic ureteric injuries. This is primarily due to the close anatomical proximity of the ureter to the female reproductive organs. The most vulnerable site is where the ureter passes **under the uterine artery** ("water under the bridge") near the level of the internal os of the cervix. Injuries typically occur during clamping of the uterine vessels or during the closure of the vaginal vault. **Analysis of Incorrect Options:** * **Abdomino-perineal resection (Option A) & Colectomy (Option D):** While colorectal surgeries are the second most common cause of ureteric injury, they occur less frequently than gynecological procedures. In these cases, the ureter is usually injured during the mobilization of the colon or ligation of the inferior mesenteric artery. * **Prostatectomy (Option C):** Ureteric injury is rare during prostatectomy because the ureters enter the bladder trigone superior to the surgical field of the prostate. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site of injury:** Lower third of the ureter (pelvic segment). * **Most common mechanism:** Ligation (crushing) or transection. * **Gold standard for diagnosis:** Intravenous Urogram (IVU) or CT Urography. * **Intraoperative detection:** If suspected, intravenous indigo carmine or methylene blue can be administered to check for extravasation. * **Management:** If detected intraoperatively, primary uretero-ureterostomy (over a double J stent) or uretero-neocystostomy (re-implantation into the bladder) is performed depending on the level of injury.

Q: According to the classification of renal injuries, which grade is assigned to a laceration more than 1 cm deep without extension into the renal pelvis or collecting system?

Grade III. The classification of renal trauma is based on the **AAST (American Association for the Surgery of Trauma) Renal Injury Scale**, which is a high-yield topic for NEET-PG. ### **Explanation of the Correct Answer** **Grade III** injuries are defined by a renal cortex laceration that is **greater than 1 cm in depth** but **does not involve the collecting system** (no urinary extravasation). There is also no evidence of a perirenal hematoma expanding into the renal pelvis. Since the question specifies a laceration >1 cm without collecting system involvement, Grade III is the correct classification. ### **Why Other Options are Incorrect** * **Grade I (Option A):** Involves only a **contusion** (microscopic or macroscopic hematuria with normal imaging) or a **non-expanding subcapsular hematoma** without a parenchymal laceration. * **Grade IV (Option C):** This grade involves a laceration extending into the **renal collecting system** (demonstrated by urinary extravasation on CT) OR injury to the main renal artery or vein with contained hemorrhage. * **Grade V (Option D):** This is the most severe stage, involving a **completely shattered kidney** or **avulsion of the renal hilum** (devascularization of the kidney). ### **High-Yield Clinical Pearls for NEET-PG** * **Grade II:** Laceration **<1 cm** in depth confined to the cortex (no collecting system involvement). * **Imaging Gold Standard:** Contrast-enhanced CT (CECT) is the investigation of choice for stable patients with suspected renal trauma. * **Management:** Most Grade I-III injuries (and even many Grade IV) are managed **conservatively** in hemodynamically stable patients. * **Key Distinction:** The presence of **urinary extravasation** is the primary differentiator between Grade III and Grade IV.

Q: A 23-year-old male presented with fever, chills, and back pain. He also complained of increased frequency of voiding. Ultrasonography revealed bladder stones. All of the following are true about bladder stones, EXCEPT:

Rare in Indian children. **Explanation:** The correct answer is **A (Rare in Indian children)** because this statement is false. In developing countries like India, endemic bladder stones are historically common among children, particularly boys. These are often associated with a diet high in cereal and low in animal protein, leading to hyperoxaluria. **Analysis of Options:** * **Option A (False/Correct Answer):** Bladder stones are **not rare** in Indian children; they are a classic presentation in pediatric urology in the Indian subcontinent, often linked to nutritional factors. * **Option B (True):** Bladder calculi are significantly more common in men. This is primarily due to **Bladder Outlet Obstruction (BOO)** caused by conditions like Benign Prostatic Hyperplasia (BPH) or urethral strictures, which lead to urinary stasis. * **Option C (True):** Small stones can be managed via **Cystolitholapaxy**, where stones are fragmented and removed through the urethra using a cystoscope. * **Option D (True):** In the majority of cases, a **solitary** bladder stone is the rule, although multiple stones can occur in cases of severe stasis or diverticula. **Clinical Pearls for NEET-PG:** * **Composition:** Most bladder stones are composed of **Ammonium Acid Urate**, Calcium Oxalate, or Uric Acid. * **The "Jackstone" Calculus:** A specific type of calcium oxalate dihydrate stone with a spiked appearance, typically found in the bladder. * **Clinical Presentation:** Characterized by "interruption of urinary stream" and pain referred to the tip of the penis (mediated by the S2-S3 nerve roots). * **Gold Standard Investigation:** Non-contrast CT (NCCT) is the most sensitive, though Ultrasound is often the initial screening tool.

Q: A male has a history of bilateral undescended testes. What is the most likely consequence?

He is likely to be sterile.. ### Explanation **1. Why Option A is Correct:** The primary consequence of bilateral undescended testes (cryptorchidism) is **infertility/sterility**. Normal spermatogenesis requires a temperature approximately 2–3°C lower than the core body temperature. When testes remain in the inguinal canal or abdomen, they are exposed to higher temperatures, leading to progressive degeneration of germ cells and tubular atrophy. While unilateral cryptorchidism carries a lower risk of infertility (~10%), **bilateral** involvement results in a significantly higher risk, with nearly 75–100% of untreated patients becoming sterile. **2. Why the Other Options are Incorrect:** * **Option B:** This is incorrect. Cryptorchidism is the most significant risk factor for **testicular germ cell tumors** (most commonly Seminoma). The risk is 5 to 10 times higher than in the general population. * **Option C:** This is incorrect. While mechanical factors (e.g., short spermatic vessels or narrow inguinal canal) play a role, the pathophysiology is often **multifactorial**, involving hormonal deficiencies (H-P-G axis) and genetic predispositions. * **Option D:** This is incorrect. Psychological well-being is a valid indication for intervention. An empty scrotum can lead to body image issues and anxiety during adolescence, making orchidopexy or prosthetic insertion necessary. **3. NEET-PG High-Yield Pearls:** * **Most common site:** Inguinal canal (specifically just outside the external ring). * **Most common tumor:** Seminoma (overall); however, if the testis is intra-abdominal, the risk of malignancy is higher. * **Ideal age for surgery:** Orchidopexy should ideally be performed between **6 to 12 months** of age to preserve fertility and allow for easier screening of malignancy. * **Orchidopexy** does not eliminate the risk of cancer, but it makes the testis palpable for early detection.

Q: The Hunt-Hess scale is used for the grading of which condition?

Subarachnoid hemorrhage (SAH). **Explanation:** The **Hunt-Hess scale** is a clinical grading system used to assess the severity of a **Subarachnoid Hemorrhage (SAH)** based on the patient’s clinical presentation. It is a critical tool for predicting perioperative mortality and determining the timing of surgical intervention (clipping or coiling). * **Grade I:** Asymptomatic or mild headache. * **Grade II:** Moderate to severe headache, nuchal rigidity, no neurological deficit (except cranial nerve palsy). * **Grade III:** Drowsiness, confusion, or mild focal deficit. * **Grade IV:** Stupor, moderate to severe hemiparesis. * **Grade V:** Deep coma, decerebrate rigidity, moribund appearance. **Analysis of Incorrect Options:** * **Subdural Hematoma (SDH):** Typically assessed using the Glasgow Coma Scale (GCS) and CT imaging (crescent-shaped hematoma) rather than a specific clinical grading scale like Hunt-Hess. * **Meningiomas:** These are graded using the **WHO Classification** (Grade I-III) based on histopathology, not clinical presentation. * **Tuberculosis:** CNS tuberculosis is often graded using the **British Medical Research Council (BMRC)** staging for tuberculous meningitis. **NEET-PG High-Yield Pearls:** 1. **Fisher Scale:** Used alongside Hunt-Hess for SAH, but it is based on **CT findings** to predict the risk of cerebral vasospasm. 2. **Most common cause of SAH:** Trauma (Overall); Rupture of Saccular (Berry) aneurysm (Spontaneous). 3. **Gold Standard Investigation:** Digital Subtraction Angiography (DSA). 4. **Management:** Nimodipine is administered to prevent vasospasm-induced delayed ischemic neurological deficits.

Q: The graph shown in the illustration is known as:

Cystometrogram. ***Cystometrogram*** - A **cystometrogram** is a urodynamic graph that plots **bladder pressure** against **bladder volume** during bladder filling. - Used to assess **bladder compliance** and **detrusor muscle activity** in patients with voiding dysfunction or neurogenic bladder. *Nephrogram* - A **nephrogram** is a radiological imaging study showing the **kidney parenchyma** after contrast administration. - It represents the **nephron phase** of contrast excretion, not a pressure-volume graph. *Pyelograph* - A **pyelograph** (or pyelogram) is an imaging study visualizing the **renal pelvis** and **ureter** using contrast. - It's a **radiological procedure**, not a graphical representation of bladder dynamics. *None of the above* - This option is incorrect as **cystometrogram** accurately describes the urodynamic graph shown. - The graph specifically measures **bladder pressure-volume relationships**, which is the definition of cystometrography.

Q: What is the best treatment for Grade I benign prostate with outflow obstruction?

Transurethral resection. **Explanation:** The management of Benign Prostatic Hyperplasia (BPH) with outflow obstruction depends on the size of the gland and the severity of symptoms. **Transurethral Resection of the Prostate (TURP)** is considered the "Gold Standard" surgical treatment for small to moderate-sized glands (typically <60–80 grams). **Grade I BPH** refers to a small enlargement (usually <25 grams). In cases where medical management fails or outflow obstruction is significant, TURP is the preferred modality because it is minimally invasive, offers excellent functional outcomes, and has a lower morbidity rate compared to open surgeries. **Analysis of Incorrect Options:** * **Retropubic (Millin’s) & Transvesical (Freyer’s) Prostatectomy:** These are open surgical procedures reserved for **large prostates** (typically >80–100 grams) or when there are associated bladder stones/diverticula that cannot be managed endoscopically. * **Androgen Therapy:** This is incorrect. While 5-alpha reductase inhibitors (like Finasteride) reduce DHT levels, "Androgen therapy" (testosterone) would actually worsen BPH symptoms. Medical management usually involves Alpha-blockers or 5-ARIs, but once "outflow obstruction" requires definitive intervention, surgery is indicated. **High-Yield Clinical Pearls for NEET-PG:** * **Gold Standard for BPH:** TURP. * **TURP Syndrome:** Caused by the absorption of glycine (irrigating fluid), leading to dilutional hyponatremia and CNS symptoms. * **Most common complication of TURP:** Retrograde ejaculation (up to 75%). * **Most common late complication:** Urethral stricture or bladder neck contracture. * **Laser of choice:** Holmium Laser Enucleation of the Prostate (HoLEP) is now preferred for very large glands as an alternative to open surgery.

Q: Scrambled egg appearance is seen in which of the following conditions?

Pancreatic carcinoma. **Explanation:** The "Scrambled Egg Appearance" is a classic radiological sign associated with **Pancreatic Carcinoma**, specifically when it involves the head of the pancreas and invades the duodenum. **1. Why Pancreatic Carcinoma is correct:** When a tumor in the head of the pancreas infiltrates the second part of the duodenum, it causes mucosal destruction, irregular filling defects, and ulceration. On a **Barium Meal** study, this creates a disorganized, mottled, and fragmented appearance of the contrast within the duodenal lumen, resembling "scrambled eggs." This sign indicates advanced local invasion of the pancreatic malignancy into the adjacent bowel. **2. Analysis of Incorrect Options:** * **Carcinoma of the Stomach:** Typically presents with a "Leather bottle" appearance (Linitis Plastica) or a "Carman’s Meniscus sign" for malignant ulcers. * **Carcinoma of the Gallbladder:** Often shows a "Porcelain gallbladder" (pre-malignant) or a fixed filling defect on cholecystography, but not the scrambled egg sign. * **Renal Carcinoma (RCC):** Characterized by the "Stretching of calyces" (Spider leg appearance) on Intravenous Urogram (IVU) due to the mass effect. **3. High-Yield Clinical Pearls for NEET-PG:** * **Frostberg’s Inverted ‘3’ Sign:** Another classic barium sign for Pancreatic Head Carcinoma, caused by the tumor fixing the duodenal mucosa at the Ampulla of Vater. * **Courvoisier’s Law:** In a patient with painless obstructive jaundice, if the gallbladder is palpable, the cause is unlikely to be gallstones (usually pancreatic or periampullary malignancy). * **Double Duct Sign:** Seen on ERCP/MRCP, representing simultaneous dilatation of the Common Bile Duct and Pancreatic Duct.

Question 1

What is the commonest cause of ureteric injury during surgical operation?

Accepted Answer

Hysterectomy

Answer

Abdomino-perineal resection

Answer

Prostatectomy

Answer

Colectomy

Question 2

According to the classification of renal injuries, which grade is assigned to a laceration more than 1 cm deep without extension into the renal pelvis or collecting system?

Accepted Answer

Grade III

Answer

Grade I

Answer

Grade IV

Answer

Grade V

Question 3

A 23-year-old male presented with fever, chills, and back pain. He also complained of increased frequency of voiding. Ultrasonography revealed bladder stones. All of the following are true about bladder stones, EXCEPT:

Accepted Answer

Rare in Indian children

Answer

Most bladder calculi are seen in men

Answer

Small stones can be removed per urethra

Answer

Solitary bladder stone is the rule

Question 4

A male has a history of bilateral undescended testes. What is the most likely consequence?

Accepted Answer

He is likely to be sterile.

Answer

His risk of testicular neoplasm is the same as other males.

Answer

The pathophysiology is merely a mechanical problem in the descent of the testes.

Answer

Intervention for psychological purposes is not a requirement.

Question 5

Which of the following statements about hypospadias is/are true?

Accepted Answer

Defect is seen in the ventral part of the penis; Associated with hooded prepuce; Circumcision should be avoided

Answer

Defect is seen in the ventral part of the penis; Always associated with chordee; Associated with hooded prepuce

Answer

Always associated with chordee; Associated with hooded prepuce; Circumcision should be avoided

Answer

Defect is seen in the ventral part of the penis; Always associated with chordee; Associated with hooded prepuce; Circumcision should be avoided

Question 6

What is the recommended method for collecting samples for the diagnosis of renal tuberculosis?

Accepted Answer

Three morning urine samples

Answer

Single early morning urine sample

Answer

24-hour urine collection

Answer

Three random urine samples

Question 7

The Hunt-Hess scale is used for the grading of which condition?

Accepted Answer

Subarachnoid hemorrhage (SAH)

Answer

Subdural hematoma (SDH)

Answer

Meningiomas

Answer

Tuberculosis

Question 8

The graph shown in the illustration is known as:

Accepted Answer

Cystometrogram

Answer

Nephrogram

Answer

Pyelograph

Answer

None of the above

Question 9

What is the best treatment for Grade I benign prostate with outflow obstruction?

Accepted Answer

Transurethral resection

Answer

Retropubic prostatectomy

Answer

Transvesical prostatectomy

Answer

Androgen therapy

Question 10

Scrambled egg appearance is seen in which of the following conditions?

Accepted Answer

Pancreatic carcinoma

Answer

Carcinoma of the stomach

Answer

Carcinoma of the gallbladder

Answer

Renal carcinoma

Urology — MCQs

Urology — MCQs

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