Urology Practice Questions

Q: Which type of renal stone is known to have less satisfactory results with extracorporeal shock wave lithotripsy (ESWL)?

Cystine stone. ***Cystine stone*** - **Cystine stones** are known for their high **elasticity** and durable molecular bonds, making them resistant to fragmentation by **extracorporeal shock wave lithotripsy (ESWL)**. - Their physical properties result in **less satisfactory fragmentation rates** compared to other stone types, often requiring multiple ESWL sessions or alternative treatments. *Oxalate stone* - **Calcium oxalate stones** are generally **amenable to ESWL**, especially smaller ones, as they tend to fragment well. - They are the **most common type of kidney stone**, and ESWL is a primary treatment modality for many of these. *Phosphate stone* - **Calcium phosphate stones** (e.g., brushite, apatite) and **struvite stones** also tend to respond reasonably well to ESWL. - While sometimes harder than oxalate stones, they usually **fragment effectively** with shock waves. *Urate stone* - **Uric acid stones** are typically **radiolucent** but generally respond well to ESWL, often fragmenting into small pieces. - They can also be dissolved with **urinary alkalinization**, which is a unique therapeutic option for this stone type.

Q: What is the most common site of penile carcinoma?

Glans. ***Glans*** - The **glans penis** is the most frequent site of origin for penile carcinoma due to its exposure and susceptibility to chronic irritation and inflammation. - Approximately **50-70%** of penile cancers originate on the glans. *Prepuce* - The **prepuce** (foreskin) is the second most common site, often affected in uncircumcised males, but less frequently than the glans itself. - Carcinomas here often develop at the **mucocutaneous junction** of the prepuce. *Shaft* - The **penile shaft** is a much less common site for penile carcinoma, accounting for a smaller percentage of cases. - Cancers on the shaft tend to be **more aggressive** and may present with different clinical features. *Coronal sulcus* - The **coronal sulcus** is the groove between the glans and the shaft. While it's a common site for lesions, it is still less common than the glans itself for the primary origin of carcinoma. - Lesions here can often spread to the glans or prepuce, making the distinction difficult without a clear point of origin.

Q: A 40-year-old male presents with translucent scrotal swelling in which it is possible to get above the swelling on examination. What is the most probable diagnosis?

Hydrocele. ***Hydrocele*** - A **hydrocele** is characterized by a translucent scrotal swelling because it contains **serous fluid**, allowing light to pass through. - The ability to **get above the swelling** on examination indicates that it is confined to the scrotum and not extending into the inguinal canal, differentiating it from an indirect inguinal hernia. *Indirect inguinal hernia* - An **indirect inguinal hernia** is a protrusion of abdominal contents through the deep inguinal ring into the scrotum, meaning it would **not be possible to get above the swelling**. - It would typically be **non-translucent** as it contains bowel or omentum, not serous fluid. *Varicocele* - A **varicocele** is a collection of dilated veins in the pampiniform plexus, often described as a **"bag of worms"** on palpation, and is typically not translucent. - While located in the scrotum, it is usually distinguishable by its **palpable vascular nature** and often changes with Valsalva maneuver. *Sebaceous cyst* - A **sebaceous cyst** is a benign growth filled with keratinous material, originating from a blocked sebaceous gland. - It would be a **firm, non-translucent lump** and not a generalized scrotal swelling that allows light transmission.

Q: What is the main hazard of ectopic testis -

Risk of carcinoma development. ***Risk of carcinoma development*** - Ectopic testis, like undescended testis (cryptorchidism), carries an **increased risk of germ cell tumors**, particularly **seminoma**. - An **ectopic testis** is one that has descended but deviated from the normal path and is located in an abnormal position (superficial inguinal pouch, perineum, femoral triangle, etc.). - While the malignancy risk in ectopic testis may be **slightly lower than true cryptorchidism**, it remains the **most significant long-term hazard**. - The increased risk is attributed to **abnormal testicular development** and **dysgenesis**, leading to potential malignant transformation. - Risk is estimated at **4-10 times higher** than normally descended testes. *Increased risk of impotence* - Ectopic testes can affect **fertility** due to impaired spermatogenesis from abnormal positioning and higher temperatures. - However, they do **not directly cause impotence** (erectile dysfunction). - Impotence relates to inability to achieve or maintain erection, which is a vascular, neurological, or psychological issue, not affected by testicular position. *Risk of hernia development* - An **inguinal hernia** can be associated with undescended testis if the processus vaginalis remains patent. - An ectopic testis, having deviated outside the normal path of descent, does **not typically predispose to hernia** formation in the same manner. - This is not the primary concern with ectopic testis. *Liable to injury* - An ectopic testis located in superficial positions (superficial inguinal pouch, perineum) is **more vulnerable to trauma** than a normally descended scrotal testis. - While trauma risk is a legitimate concern, it is **secondary** to the long-term risk of **malignancy**. - The risk of cancer development far outweighs the risk of traumatic injury in clinical significance.

Q: What is the most appropriate treatment for a patient with symptomatic bladder stones?

Transurethral litholapaxy. ***Transurethral litholapaxy*** - This procedure involves inserting a **cystoscope** through the urethra into the bladder to visualize and then fragment the stone using various energy sources (e.g., laser, pneumatic, ultrasound). - The fragmented pieces are then irrigated and removed, offering a **minimally invasive** and highly effective treatment for most bladder stones. *Percutaneous suprapubic litholapaxy* - This method is typically reserved for very **large or complex bladder stones** that are difficult to manage transurethrally. - It involves accessing the bladder directly through a **suprapubic incision**, which is more invasive than the transurethral approach. *Vesicotomy and stone retrieval* - A **vesicotomy** (open surgical incision into the bladder) is a more invasive procedure, usually considered when other less invasive methods have failed or are not feasible. - This approach carries higher risks, including **longer recovery times** and potential for greater complications compared to endoscopic options. *Intravenous antibiotics* - **Antibiotics** are used to treat or prevent urinary tract infections that may be associated with bladder stones, but they do not remove or dissolve the stones themselves. - While infection may be a concurrent issue, antibiotics alone **do not address the physical obstruction** or symptomatic cause of bladder stones.

Q: Earliest and often the only presentation of TB kidney is

Blood in urine. ***Blood in urine*** - **Hematuria** (blood in urine) is a common initial presentation of renal TB, often microscopic and sometimes macroscopic, appearing early due to inflammation and ulceration of the urinary tract. - The presence of **blood in urine** without significant pain or other classic infection signs can confuse the diagnosis, making it an "early" and *misleading* symptom without further investigation. *Sterile pyuria* - While **sterile pyuria** (pus cells in urine without bacterial growth on routine cultures) is highly suggestive of **TB kidney**, it tends to appear later in the disease progression as more significant renal damage and inflammation occur. - Early stages might not show prominent pyuria, and **hematuria** often precedes it as the initial symptom of tissue damage. *Colicky abdominal pain* - **Colicky abdominal pain** is more commonly associated with obstruction, such as from stone passage or severe hydronephrosis, which are typically later complications of TB kidney, not early presentations. - Early renal TB typically involves the parenchyma and calyces, not usually leading to significant obstruction that would cause colicky pain. *Kidney stones* - **Kidney stones** (renal calculi) are a potential long-term complication of renal TB due to metabolic changes, inflammation, and cellular debris, but they are not an *early* or *initial* symptom [1]. - The formation of stones usually indicates more advanced disease or chronic inflammation within the urinary tract [1].

Q: An elderly male patient presented with a sudden onset of scrotal pain and discharge as shown in the image. What is the likely diagnosis?

Fournier’s gangrene. ***Fournier's gangrene*** - The sudden onset of scrotal pain with discharge in an elderly male, combined with **tissue necrosis** and extensive scrotal skin changes, is characteristic of **Fournier's gangrene** (necrotizing fasciitis of the genitalia). - Elderly males are at higher risk due to **diabetes**, **immunocompromise**, and **urogenital infections**, making this a rapidly progressive and potentially life-threatening condition requiring urgent surgical debridement. *Acute epididymo-orchitis* - While epididymo-orchitis can cause scrotal pain and discharge, it typically does **not cause tissue necrosis** or the extensive scrotal skin changes described. - It presents as **localized inflammation** of the epididymis/testis without the widespread necrotizing changes seen in this case. *Torsion of testis* - Testicular torsion typically presents with **abrupt, severe scrotal pain** and swelling, but usually **without discharge** or the extensive scrotal skin changes seen here. - It constitutes a **surgical emergency** due to compromised blood supply to the testis, but doesn't involve necrotizing infection. *Scrotal carcinoma* - Scrotal carcinoma usually presents as a **painless mass or ulceration** that grows over time, rather than a sudden onset of severe pain and discharge. - It represents a **chronic process** and doesn't typically cause the acute necrotizing inflammatory changes observed in this case.

Q: Treatment of Renal cell carcinoma of less than 4 cm will be?

Partial nephrectomy. ***Partial nephrectomy*** - For **renal cell carcinoma (RCC) less than 4 cm** (T1a tumors), **partial nephrectomy** is the preferred treatment. This approach aims to preserve as much healthy renal tissue as possible, reducing the risk of chronic kidney disease, especially in patients with normal contralateral kidneys. - Studies have shown that partial nephrectomy offers comparable **oncologic outcomes** to radical nephrectomy for small tumors while providing better overall kidney function. *Radical nephrectomy* - While effective for larger tumors or those invading surrounding structures, **radical nephrectomy** involves removing the entire kidney, which may lead to a higher risk of **chronic kidney disease** compared to partial nephrectomy for small tumors. - This option is generally reserved for **larger tumors** (T1b or greater), more complex cases, or when partial nephrectomy is not feasible due to tumor location or patient comorbidities. *Radical nephrectomy + postoperative radiotherapy* - **Radiotherapy** is generally not effective in treating renal cell carcinoma (RCC) due to the **radioresistant nature** of the tumor cells. It is rarely used in the primary treatment of RCC. - The combination of radical nephrectomy and postoperative radiotherapy would expose the patient to unnecessary treatment with significant side effects without clear survival benefits for localized disease. *Radical nephrectomy + chemotherapy* - **Chemotherapy** has historically shown **limited efficacy** in the treatment of renal cell carcinoma, particularly for localized disease. It is primarily used in advanced, metastatic RCC, and newer targeted therapies and immunotherapies are often preferred. - For small, localized tumors, surgery alone is curative, and adding chemotherapy to radical nephrectomy would introduce **unnecessary toxicity** without improving outcomes.

Q: A patient presents with abdominal swelling and inguinal lymphadenopathy. Considering the clinical presentation, which carcinoma is most likely associated with these findings?

Ca penis. ***Ca penis*** - **Carcinoma of the penis** commonly metastasizes to the **inguinal lymph nodes** due to its lymphatic drainage patterns. - Advanced penile cancer with extensive nodal involvement can lead to **abdominal swelling** from large retroperitoneal nodes compressing structures or generalized edema. *Ca testis* - **Testicular cancer** typically metastasizes to **retroperitoneal lymph nodes** first, not inguinal nodes. - While retroperitoneal nodes can cause abdominal swelling, **inguinal involvement is rare** unless there is scrotal invasion or prior surgery. *Ca prostate* - **Prostate cancer** primarily metastasizes to **pelvic lymph nodes** (obturator, internal iliac) and bone, rarely to inguinal lymph nodes. - Abdominal swelling would more likely be due to **bone metastases** causing painful compression or uremia from urinary obstruction rather than inguinal adenopathy. *Ca bladder* - **Bladder cancer** tends to spread to **pelvic lymph nodes**, similar to prostate cancer, and can cause abdominal swelling if it obstructs ureters or involves extensive pelvic spread. - **Inguinal lymphadenopathy is uncommon** in bladder cancer unless there is direct extension into the groin or superficial involvement.

Q: A man under alcohol intoxication fell into a manhole and sustained a perineal injury with a swollen scrotum and upper thigh, along with blood at the meatus. The patient is experiencing difficulty passing urine. What is the most likely injury associated with this trauma?

Bulbar urethral injury. ***Bulbar urethra*** - The combination of a **perineal injury** (falling into a manhole), **scrotal and upper thigh swelling**, and **blood at the meatus** strongly indicates a **bulbar urethral injury**. - **Difficulty passing urine** further supports urethral damage, as the bulbar urethra is the most common site of injury from straddle or crush injuries to the perineum. *Bladder rupture* - While bladder rupture can cause difficulty urinating, the primary findings would typically be **suprapubic pain**, a **distended abdomen**, and possibly **hematuria**, not necessarily significant scrotal swelling or blood at the meatus alone. - A bladder rupture is more common with a **direct blow to a full bladder** or a pelvic fracture, rather than a direct perineal impact. *Penile fracture* - **Penile fracture** results from penile trauma during intercourse (or forced bending) and presents with a sudden "snapping" sound, immediate pain, detumescence, and a characteristic "eggplant deformity" due to a ruptured tunica albuginea. - It does not typically involve significant perineal swelling or blood at the meatus in the absence of concomitant urethral injury. *Membranous urethra* - Injuries to the **membranous urethra** are usually associated with **pelvic fractures** and are less commonly linked with direct perineal trauma without evidence of a bony injury. - While blood at the meatus and difficulty urinating can occur, the prominent scrotal and upper thigh swelling from a direct perineal impact points more specifically to the **bulbar urethra**.

Question 1

Which type of renal stone is known to have less satisfactory results with extracorporeal shock wave lithotripsy (ESWL)?

Accepted Answer

Cystine stone

Answer

Oxalate stone

Answer

Phosphate stone

Answer

Urate stone

Question 2

What is the most common site of penile carcinoma?

Accepted Answer

Glans

Answer

Prepuce

Answer

Shaft

Answer

Coronal sulcus

Question 3

A 40-year-old male presents with translucent scrotal swelling in which it is possible to get above the swelling on examination. What is the most probable diagnosis?

Accepted Answer

Hydrocele

Answer

Indirect inguinal hernia

Answer

Varicocele

Answer

Sebaceous cyst

Question 4

What is the main hazard of ectopic testis -

Accepted Answer

Risk of carcinoma development

Answer

Increased risk of impotence

Answer

Risk of hernia development

Answer

Liable to injury

Question 5

What is the most appropriate treatment for a patient with symptomatic bladder stones?

Accepted Answer

Transurethral litholapaxy

Answer

Percutaneous suprapubic litholapaxy

Answer

Vesicotomy and stone retrieval

Answer

Intravenous antibiotics

Question 6

Earliest and often the only presentation of TB kidney is

Accepted Answer

Blood in urine

Answer

Sterile pyuria

Answer

Colicky abdominal pain

Answer

Kidney stones

Question 7

An elderly male patient presented with a sudden onset of scrotal pain and discharge as shown in the image. What is the likely diagnosis?

Accepted Answer

Fournier’s gangrene

Answer

Torsion of testis

Answer

Scrotal carcinoma

Answer

Acute epididymo-orchitis

Question 8

Treatment of Renal cell carcinoma of less than 4 cm will be?

Accepted Answer

Partial nephrectomy

Answer

Radical nephrectomy

Answer

Radical nephrectomy + postoperative radiotherapy

Answer

Radical nephrectomy + chemotherapy

Question 9

A patient presents with abdominal swelling and inguinal lymphadenopathy. Considering the clinical presentation, which carcinoma is most likely associated with these findings?

Accepted Answer

Ca penis

Answer

Ca testis

Answer

Ca prostate

Answer

Ca bladder

Question 10

A man under alcohol intoxication fell into a manhole and sustained a perineal injury with a swollen scrotum and upper thigh, along with blood at the meatus. The patient is experiencing difficulty passing urine. What is the most likely injury associated with this trauma?

Accepted Answer

Bulbar urethral injury

Answer

Bladder rupture

Answer

Penile fracture

Answer

Membranous urethral injury

Urology — MCQs

Urology — MCQs

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