Urology — MCQs

Urology Indian Medical PG Practice Questions and MCQs

Question 61: What is the most common complication seen with prostatitis?

A. Epididymitis (Correct Answer)
B. Orchitis
C. Sterility
D. Seminal vesiculitis

Explanation: ### Explanation **Correct Option: A. Epididymitis** Prostatitis, particularly acute bacterial prostatitis, is frequently caused by the reflux of infected urine into the prostatic ducts. Due to the anatomical proximity and the shared ductal system, the infection can easily spread via the **vas deferens** (retrograde spread) to the epididymis. **Epididymitis** is recognized as the most common complication of acute prostatitis. Clinically, this often presents as sudden onset scrotal pain and swelling following symptoms of urinary tract infection or prostatic inflammation. **Analysis of Incorrect Options:** * **B. Orchitis:** While orchitis can occur, it is usually secondary to the spread of infection from the epididymis (epididymo-orchitis). Isolated orchitis is more commonly viral (e.g., Mumps) rather than a direct primary complication of prostatitis. * **C. Sterility:** Chronic prostatitis can lead to changes in semen parameters (decreased motility or leukocytospermia), but absolute sterility is a rare and late-stage consequence rather than a common acute complication. * **D. Seminal vesiculitis:** The seminal vesicles are often involved concurrently with the prostate (prostatovesiculitis) because they share the same embryological origin and drainage sites. However, clinically significant, isolated seminal vesiculitis is less frequently documented as a distinct complication compared to epididymitis. **NEET-PG High-Yield Pearls:** * **Most common organism:** *E. coli* is the most common cause of bacterial prostatitis in men >35 years; *Chlamydia trachomatis* and *N. gonorrhoeae* are more common in men <35 years. * **Contraindication:** Prostatic massage is strictly **contraindicated** in acute prostatitis due to the risk of inducing bacteremia/sepsis. * **Prostatic Abscess:** If a patient with prostatitis fails to respond to antibiotics within 48–72 hours, suspect a prostatic abscess (diagnosed via TRUS).

Question 62: Which of the following is NOT seen in carcinoid syndrome?

A. Diarrhea
B. Constipation (Correct Answer)
C. Liver metastasis
D. 5-HT secretion

Explanation: **Explanation:** Carcinoid syndrome is a paraneoplastic syndrome caused by the systemic release of vasoactive substances, primarily **Serotonin (5-HT)**, into the systemic circulation. **Why Constipation is the Correct Answer:** Carcinoid syndrome is characterized by **increased intestinal motility**. Serotonin stimulates the secretory and motor functions of the gut, leading to significant **secretory diarrhea** and abdominal cramping. Therefore, constipation is not a feature of this syndrome; rather, its opposite (diarrhea) is a hallmark symptom. **Analysis of Incorrect Options:** * **Diarrhea (Option A):** This is one of the most common clinical features (seen in >70% of cases) due to serotonin’s effect on the bowel. * **Liver Metastasis (Option C):** Carcinoid syndrome typically occurs only when the tumor has **metastasized to the liver**. In primary midgut tumors, the liver metabolizes bioactive substances (first-pass metabolism). Once liver metastases are present, these substances bypass metabolism and enter the systemic circulation via the hepatic veins. * **5-HT Secretion (Option D):** Serotonin (5-HT) is the primary mediator responsible for the clinical manifestations of the syndrome. Its metabolite, **5-HIAA**, is measured in a 24-hour urine collection for diagnosis. **High-Yield Clinical Pearls for NEET-PG:** * **Classic Triad:** Flushing (most common), Diarrhea, and Right-sided Valvular Heart Disease (Tricuspid Regurgitation/Pulmonary Stenosis). * **Diagnosis:** Best initial screening test is **24-hour urinary 5-HIAA**. * **Localization:** **Somatostatin Receptor Scintigraphy (OctreoScan)** is the investigation of choice for locating the tumor. * **Management:** **Octreotide** (Somatostatin analogue) is used to control symptoms and manage carcinoid crisis.

Question 63: What is the investigation of choice for posterior urethral stricture?

A. Retrograde Urethrogram
B. Anterograde Urethrogram (Correct Answer)
C. IV Pyelogram
D. Ascending Urethrogram

Explanation: **Explanation:** The investigation of choice for a posterior urethral stricture is an **Anterograde Urethrogram** (also known as a Micturating Cystourethrogram or MCUG). **Why Anterograde Urethrogram is correct:** Posterior urethral strictures (located in the prostatic or membranous urethra) are most commonly caused by pelvic fractures. To visualize the anatomy *proximal* to the stricture and determine the exact length and location of the obliteration, contrast must be introduced from the bladder downwards. This is typically done via a suprapubic catheter (SPC). It allows the surgeon to see the "proximal limit" of the stricture, which is vital for surgical planning (e.g., urethroplasty). **Analysis of Incorrect Options:** * **Retrograde Urethrogram (RGU) / Ascending Urethrogram:** These are the same procedure. RGU is the investigation of choice for **Anterior urethral strictures** (penile or bulbar urethra). In posterior strictures, RGU only shows the distal limit of the stricture but fails to define the proximal extent. * **IV Pyelogram (IVP):** This is used to visualize the upper urinary tract (kidneys and ureters). It provides poor detail of the urethral anatomy and is not used for stricture evaluation. **Clinical Pearls for NEET-PG:** * **Gold Standard for Urethral Stricture (General):** Combined RGU + Anterograde Urethrogram (to define the exact length of the gap). * **Most common site of Post-Traumatic Stricture:** Membranous urethra (Posterior). * **Most common site of Inflammatory/Iatrogenic Stricture:** Bulbar urethra (Anterior). * **Management:** For short posterior strictures, **End-to-end Anastomotic Urethroplasty** is the preferred definitive treatment.

Question 64: What is the treatment of choice for Stage I seminoma of the testis?

A. High inguinal orchidectomy
B. High inguinal orchidectomy and radiotherapy (Correct Answer)
C. Radiotherapy and chemotherapy
D. Trans-scrotal orchidectomy

Explanation: **Explanation:** The management of testicular tumors is a high-yield topic for NEET-PG. The primary treatment for any suspected testicular malignancy is **High Inguinal Orchidectomy**. This procedure allows for both definitive diagnosis (histopathology) and local control while preventing lymphatic spread to scrotal/inguinal nodes. **Why Option B is correct:** Stage I seminoma is defined as a tumor limited to the testis and epididymis without nodal or distant metastasis. Seminomas are exquisitely **radiosensitive**. Following high inguinal orchidectomy, the standard of care involves adjuvant low-dose radiotherapy to the ipsilateral retroperitoneal (paraaortic) lymph nodes to prevent occult recurrence. While "surveillance" or a single dose of Carboplatin are modern alternatives, radiotherapy remains a classic "treatment of choice" in standard textbooks and exams. **Analysis of Incorrect Options:** * **Option A:** High inguinal orchidectomy alone is insufficient as it does not address the 15-20% risk of occult micrometastasis in the retroperitoneal nodes. * **Option C:** Radiotherapy and chemotherapy are used for advanced stages (Stage IIB and above). Surgery is always the first step for Stage I. * **Option D:** Trans-scrotal orchidectomy is **contraindicated** in testicular cancer because it disrupts the lymphatic drainage, potentially leading to inguinal lymph node metastasis (scrotal seeding). **High-Yield Clinical Pearls:** * **Lymphatic Spread:** Testicular tumors typically spread to **Para-aortic nodes** (at the level of L2), not inguinal nodes. * **Tumor Markers:** Seminomas may show elevated **hCG** (in 10-15% of cases) but **never** elevated Alpha-fetoprotein (AFP). If AFP is high, it is a Non-Seminomatous Germ Cell Tumor (NSGCT). * **Most Common:** Seminoma is the most common histological type of testicular germ cell tumor.

Question 65: Which is the most common complication of undescended testis?

A. Torsion
B. Infertility
C. Epididymo-orchitis
D. Indirect inguinal hernia (Correct Answer)

Explanation: **Explanation:** The correct answer is **Indirect inguinal hernia**. **Why it is the correct answer:** The descent of the testis is preceded by the **processus vaginalis**, a peritoneal fold. In cases of an undescended testis (cryptorchidism), the processus vaginalis almost always remains patent (fails to obliterate). This patent processus vaginalis provides a direct communication between the peritoneal cavity and the inguinal canal, leading to an **associated indirect inguinal hernia in approximately 90% of cases**. Therefore, it is statistically the most common complication/association. **Why the other options are incorrect:** * **Infertility:** While a significant long-term consequence (especially in bilateral cases), it is considered a **sequela** rather than the most common immediate anatomical complication. Histological changes start as early as 1–2 years of age. * **Torsion:** Undescended testes are more prone to torsion than scrotal testes due to increased mobility and lack of fixation, but the incidence is much lower than that of an associated hernia. * **Epididymo-orchitis:** This is an inflammatory/infectious condition and is not specifically linked to the malposition of the testis as a primary complication. **NEET-PG High-Yield Pearls:** * **Most common site:** Inguinal canal (specifically just outside the external ring). * **Malignancy Risk:** The risk of testicular germ cell tumors (most commonly **Seminoma**) is 4–10 times higher. Orchidopexy does not eliminate the risk but makes the testis accessible for screening. * **Optimal Age for Surgery:** Orchidopexy should ideally be performed between **6 to 12 months** of age to preserve fertility potential. * **Most common associated anomaly:** Patent processus vaginalis (leading to indirect hernia).

Question 66: Spermatocoeles are most commonly found at which anatomical location?

A. The head of the epididymis (Correct Answer)
B. The testis
C. The prostate
D. The seminal vesicles

Explanation: **Explanation:** A **spermatocoele** is a benign, painless, fluid-filled retention cyst containing spermatozoa. It arises from the **efferent ductules** of the testis, which are located at the **head (caput) of the epididymis**. These ductules transport sperm from the rete testis to the epididymis; if one becomes obstructed or undergoes cystic dilatation, a spermatocoele forms. **Analysis of Options:** * **A. The head of the epididymis (Correct):** This is the most common site because it is the anatomical junction where the efferent ductules converge. On physical examination, a spermatocoele is typically felt as a distinct, transilluminating mass superior to the testis. * **B. The testis:** While spermatocoeles are adjacent to the testis, they do not arise from the testicular parenchyma itself. Intratesticular cysts are rare and usually simple cysts, not spermatocoeles. * **C. The prostate:** Prostatic cysts (e.g., Mullerian duct cysts or utricle cysts) occur within the pelvis and present with urinary symptoms or infertility, not as scrotal swellings. * **D. The seminal vesicles:** Seminal vesicle cysts are rare and located deep in the pelvis, often associated with renal agenesis (Zinner syndrome). **Clinical Pearls for NEET-PG:** * **Physical Exam:** A spermatocoele is often described as a **"third testis"** or a "cyst above the testis." It can be palpated separately from the testis (unlike a hydrocele, which surrounds it). * **Transillumination:** Like hydroceles, spermatocoeles transilluminate brightly. * **Content:** Aspiration (though rarely done) reveals **milky fluid** containing non-viable or viable spermatozoa, distinguishing it from an epididymal cyst (which contains clear fluid). * **Management:** Most are asymptomatic and require no treatment. Surgical excision (spermatocelectomy) is reserved for large, painful cysts.

Question 67: A 35-year-old male presents with a non-tender scrotal swelling that is separate from the testes. On transillumination, a "Chinese lantern" pattern is observed. What is the most likely diagnosis?

A. Vaginal hydrocele
B. Inguinal hernia
C. Epididymal cyst (Correct Answer)
D. Varicocele

Explanation: ### Explanation **Correct Option: C. Epididymal cyst** The diagnosis is based on three key clinical features: 1. **Anatomical Location:** The swelling is **separate from the testis**. In an epididymal cyst, the testis can be felt distinctly from the cyst, unlike a vaginal hydrocele where the testis is "buried" within the fluid. 2. **Transillumination Pattern:** The **"Chinese lantern" effect** is a classic pathognomonic sign for epididymal cysts (and spermatoceles). Because these cysts are often multilocular (composed of multiple small fluid-filled spaces), the light is refracted by the internal septa, creating a patterned glow rather than a uniform one. 3. **Nature:** It is typically a non-tender, painless swelling found in the head of the epididymis. **Why other options are incorrect:** * **Vaginal hydrocele:** While it transilluminates, the light is **uniform** (not patterned). Crucially, the testis cannot be felt separately as it is surrounded by the tunica vaginalis fluid. * **Inguinal hernia:** These are generally **not transilluminant**, often have a cough impulse, and you cannot "get above" the swelling. * **Varicocele:** Described as a **"bag of worms"** sensation. It does not transilluminate and typically disappears or diminishes when the patient lies down. **High-Yield Pearls for NEET-PG:** * **Epididymal Cyst vs. Spermatocele:** Both show the Chinese lantern effect. The distinction is fluid content: Epididymal cysts contain **clear fluid**, while spermatoceles contain **milky fluid** (opalescent) with spermatozoa. * **Lord’s Procedure:** The surgical treatment of choice for a small/medium hydrocele (plication of the sac). * **Jaboulay’s Procedure:** Used for large, thick-walled hydroceles (eversion of the sac). * **Preadolescent scrotal swelling:** Always rule out a patent processus vaginalis (communicating hydrocele).

Question 68: In a fracture of the penis involving rupture of the tunica albuginea with intact Buck's fascia, which clinical finding would be noted?

A. Hematoma involving only the shaft of the penis (Correct Answer)
B. Hematoma involving the scrotum and perineal region
C. Hematoma involving the penis, scrotum, and abdominal wall
D. Hematoma involving the penis, scrotum, and thighs

Explanation: ### Explanation **1. Why Option A is Correct:** Penile fracture is a traumatic rupture of the **tunica albuginea** of the corpus cavernosum. The spread of the resulting hematoma is strictly governed by the integrity of the surrounding fascial layers. **Buck’s fascia** (deep fascia of the penis) is a tough, fibrous layer that completely invests the corpora. If the tunica albuginea ruptures but **Buck’s fascia remains intact**, the extravasated blood and urine are confined beneath it. This results in a hematoma localized strictly to the **shaft of the penis**, often presenting with the classic "eggplant deformity." **2. Why the Other Options are Incorrect:** * **Options B, C, and D:** These scenarios occur only if **Buck’s fascia is also ruptured**. Once Buck’s fascia is breached, the hematoma/urine escapes into the superficial perineal pouch. It is then limited by **Colles’ fascia**, which is continuous with **Scarpa’s fascia** of the abdominal wall. This leads to a "butterfly-shaped" hematoma involving the scrotum, perineum, and lower abdominal wall, but notably sparing the thighs (due to the attachment of Colles’ fascia to the fascia lata). **3. Clinical Pearls for NEET-PG:** * **Mechanism:** Most commonly occurs during vigorous sexual intercourse (the "woman-on-top" position). * **Clinical Triad:** Sudden "snapping" sound, immediate detumescence (loss of erection), and rapid swelling/ecchymosis. * **Diagnosis:** Primarily clinical. If the diagnosis is doubtful, **Retrograde Urethrography (RUG)** is the investigation of choice to rule out concomitant urethral injury (present in 10-20% of cases). * **Management:** Immediate **surgical exploration** and repair of the tunica albuginea is the gold standard to prevent long-term complications like Peyronie’s disease or erectile dysfunction.

Question 69: Which of the following is the most common renal vascular anomaly?

A. Supernumerary renal arteries (Correct Answer)
B. Supernumerary renal veins
C. Double renal arteries
D. Double renal veins

Explanation: **Explanation:** The development of the kidneys involves a complex "ascent" from the pelvis to the lumbar region. During this process, the kidneys receive blood supply from successive arterial sprouts originating from the aorta. Normally, lower vessels degenerate as higher ones form. Failure of these transient embryonic vessels to degenerate results in **Supernumerary (Accessory) Renal Arteries**, which is the most common renal vascular anomaly, occurring in approximately **25–30%** of the population. * **Option A (Correct):** Supernumerary renal arteries are more common than venous anomalies because the arterial system undergoes more complex remodeling during renal ascent. They are typically "end-arteries," meaning their ligation leads to segmental renal infarction. * **Option B & D (Incorrect):** Supernumerary or double renal veins are significantly less common (approx. 5–10%) because the venous system undergoes a different embryological fusion process (involving the supracardinal and subcardinal veins) that more efficiently results in a single vessel. * **Option C (Incorrect):** While "double renal arteries" is a type of supernumerary artery, the term "Supernumerary" is the broader, more accurate anatomical classification used in standard textbooks (like Gray’s Anatomy) to describe any additional renal arteries beyond the single main hilum artery. **High-Yield Clinical Pearls for NEET-PG:** 1. **Lower Pole Artery:** An accessory artery to the lower pole can cross the ureteropelvic junction (UPJ), causing extrinsic compression and **Hydronephrosis** (Dietl’s crisis). 2. **Surgical Significance:** Identification is crucial during renal transplantation and laparoscopic nephrectomy to prevent hemorrhage or graft infarction. 3. **Origin:** Most accessory arteries arise directly from the abdominal aorta.

Question 70: A 78-year-old male with a known history of prostate cancer presents with multiple painful vertebral metastases. What is the ideal management plan?

A. Androgen ablation with orchidectomy (Correct Answer)
B. Palliative chemotherapy
C. Radical prostatectomy
D. Transurethral resection of the prostate (TURP)

Explanation: **Explanation:** The primary goal in managing advanced (metastatic) prostate cancer is **Androgen Deprivation Therapy (ADT)**. Prostate cancer cells are androgen-dependent; depriving them of testosterone leads to significant tumor regression and rapid relief of bone pain. **Why Option A is correct:** In a 78-year-old patient with painful vertebral metastases, **Bilateral Orchidectomy** (surgical castration) is considered the "gold standard" for androgen ablation. It provides a rapid, permanent drop in testosterone levels (to <50 ng/dL) within 12–24 hours, which is crucial for preventing potential spinal cord compression in cases of vertebral involvement. It is also cost-effective and avoids the "testosterone flare" associated with LHRH agonists. **Why other options are incorrect:** * **B. Palliative chemotherapy:** This is typically reserved for **Castration-Resistant Prostate Cancer (CRPC)**—cases where the disease progresses despite ADT. It is not the first-line treatment for hormone-sensitive metastatic disease. * **C. Radical prostatectomy:** This is a curative intent surgery indicated only for **localized** disease (Stage T1/T2). It has no role in the management of distant metastases. * **D. TURP:** This is a palliative procedure used to relieve bladder outlet obstruction symptoms. It does not treat the underlying malignancy or the metastatic bone pain. **High-Yield Clinical Pearls for NEET-PG:** * **Medical Castration:** Achieved using LHRH agonists (e.g., Leuprolide). Note: These cause an initial "flare"; hence, anti-androgens (e.g., Flutamide) must be given 2 weeks prior. * **Most common site of metastasis:** Bone (specifically the lumbar spine), typically presenting as **osteoblastic** lesions. * **Tumor Marker:** PSA (Prostate-Specific Antigen) is used for monitoring response to therapy and recurrence.

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