Urology Practice Questions

Q: All of the following are true about Carcinoma Penis except?

Most common type is verrucous carcinoma. **Explanation:** The correct answer is **Option B** because it is a false statement. The most common histological type of penile cancer is **Squamous Cell Carcinoma (SCC)**, accounting for over 95% of cases. **Verrucous carcinoma** (also known as Buschke-Löwenstein tumor) is a specific, well-differentiated variant of SCC that is locally aggressive but rarely metastasizes. **Analysis of other options:** * **Option A (Spreads hematogenously):** While the primary route of spread for penile cancer is lymphatic (to inguinal nodes), distant hematogenous spread can occur in advanced stages (Stage IV), typically involving the lungs, liver, or bones. * **Option C (Slowly progressive):** Carcinoma penis is generally a slow-growing malignancy. It often starts as a small lesion or ulcer on the glans or prepuce and progresses over months or years. * **Option D (Leads to erosion of artery):** In advanced, untreated cases, the tumor can locally invade deep structures. Erosion into the **femoral artery** (often due to massive inguinal nodal involvement) is a known terminal complication leading to exsanguination. **High-Yield Clinical Pearls for NEET-PG:** * **Risk Factors:** Phimosis (most important), HPV 16 & 18, smoking, and lack of neonatal circumcision. * **Lymphatic Drainage:** The glans and shaft drain first to the **superficial inguinal nodes**. * **Sentinel Node:** The **Node of Cloquet** (deep inguinal) is a key landmark. * **Staging:** The Jackson Staging or TNM system is used. * **Management:** Small lesions may be treated with organ-preserving surgery (glansectomy); advanced cases require partial or total penectomy with Ilio-inguinal lymph node dissection.

Q: Which of the following conditions does NOT predispose to torsion of the testis?

Epididymo-orchitis. **Explanation:** Testicular torsion is a surgical emergency caused by the twisting of the spermatic cord, leading to vascular compromise. For torsion to occur, there must be **abnormal mobility** of the testis within the scrotum. **Why Epididymo-orchitis is the correct answer:** Epididymo-orchitis is an **inflammatory condition**, not a predisposing anatomical factor. In fact, the inflammatory process leads to adhesions and inflammatory edema between the layers of the tunica vaginalis and the scrotal wall. These adhesions effectively "fix" the testis in place, making it **less likely** to twist. Clinically, it is the primary differential diagnosis for torsion (distinguished by a positive Prehn’s sign). **Analysis of predisposing factors (Incorrect Options):** * **High investment of the tunica vaginalis:** This is the most common cause, known as the **"Bell-clapper deformity."** When the tunica vaginalis attaches high up on the spermatic cord, the testis hangs freely like a clapper in a bell, allowing it to rotate. * **Inversion of the testis:** If the testis is situated abnormally (e.g., horizontal lie), the axis of rotation is altered, increasing the risk of twisting. * **Separation of the epididymis from the testis:** An increased distance or elongated mesorchium between the testis and epididymis creates a "long stalk" effect, facilitating torsion. **NEET-PG High-Yield Pearls:** * **Golden Period:** Salvage rate is nearly 100% if detorsion occurs within **6 hours**. * **Prehn’s Sign:** Elevation of the scrotum relieves pain in epididymo-orchitis but **not** in torsion (Negative Prehn's sign). * **Investigation of Choice:** Color Doppler Ultrasound (shows absent or decreased blood flow). * **Management:** Emergency surgical exploration and **bilateral orchidopexy** (fixation), as the anatomical defect is usually bilateral.

Q: Ureteral tumors occur most frequently in which part of the ureter?

Lower one-third. **Explanation:** Primary ureteral tumors (most commonly **Transitional Cell Carcinomas**) are relatively rare compared to bladder tumors but follow a specific distribution pattern. **Why the Lower One-Third is Correct:** The incidence of ureteral tumors increases as you move distally along the urinary tract. Approximately **70% of all ureteral tumors** occur in the **lower one-third (distal ureter)**. This is primarily attributed to the "field effect" theory of urothelial malignancy: the distal segments of the ureter have a larger surface area of urothelium exposed to concentrated urinary carcinogens for a longer duration due to gravity and the physiological slowing of bolus transport near the vesicoureteric junction. **Analysis of Incorrect Options:** * **Upper one-third (A):** Only about 15-20% of tumors occur here. While it is the second most common site, it is significantly less frequent than the distal segment. * **Middle one-third (B):** This segment accounts for roughly 10-15% of cases, making it the least common site for primary ureteral malignancy. * **Equally along the length (D):** Ureteral tumors do not show a uniform distribution; there is a clear predilection for the distal segment. **High-Yield Clinical Pearls for NEET-PG:** * **Most common histology:** Transitional Cell Carcinoma (TCC) / Urothelial Carcinoma (>90%). * **Most common symptom:** Painless gross hematuria (75% of cases). * **Dietl’s Crisis:** Can occur if the tumor causes intermittent hydronephrosis. * **Bergman’s Sign (Cobblestone sign):** On retrograde pyelography, the catheter coils in the dilated ureter distal to the tumor. * **Association:** Patients with ureteral TCC have a 30-50% chance of developing synchronous or metachronous bladder cancer. Always perform a cystoscopy during workup.

Q: High inguinal orchidectomy specimen showed tumor testis with involvement of epididymis without vascular invasion; what is the stage?

T1. This question tests your knowledge of the **AJCC TNM Staging (8th Edition)** for testicular tumors. The staging of primary testicular tumors (pT) is unique because it depends heavily on the anatomical structures involved and the presence of lymphovascular invasion (LVI). ### **Explanation of the Correct Answer** **Option A (T1) is correct** because, according to the AJCC 8th edition, a tumor limited to the testis and **epididymis** without vascular/lymphatic invasion is classified as **pT1**. * **Key Concept:** Involvement of the epididymis or the tunica albuginea (but not the tunica vaginalis) does not upgrade the stage beyond T1, provided there is no lymphovascular invasion. ### **Analysis of Incorrect Options** * **Option B (T2):** This stage is assigned if there is **lymphovascular invasion (LVI)** OR if the tumor invades the **tunica vaginalis**. Since the question explicitly states "without vascular invasion" and mentions only the epididymis, it cannot be T2. * **Option C (T3):** This stage is reserved for tumors that invade the **spermatic cord**, with or without vascular invasion. * **Option D (T4):** This stage is assigned when the tumor invades the **scrotum**. ### **High-Yield Clinical Pearls for NEET-PG** 1. **Route of Surgery:** Always perform a **High Inguinal Orchidectomy**. A trans-scrotal biopsy or orchidectomy is contraindicated as it alters the lymphatic drainage from para-aortic nodes to inguinal nodes (Scrotal Seeding). 2. **TNM Distinction:** * **pT1:** Testis, Epididymis, or Tunica Albuginea (No LVI). * **pT2:** Presence of **LVI** OR involvement of **Tunica Vaginalis**. 3. **Serum Markers (S):** Testicular cancer is unique because the TNM stage includes "S" (Serum tumor markers: AFP, hCG, and LDH). 4. **Lymphatic Drainage:** Testis drains to **Para-aortic nodes** (at the level of L2), while the Scrotum drains to **Superficial Inguinal nodes**.

Q: All of the following skin conditions are considered as skin markers for internal malignancy except?

Pemphigus vulgaris. **Explanation:** The question tests the knowledge of **Paraneoplastic Syndromes**, specifically cutaneous markers associated with internal malignancies. **Pemphigus vulgaris (Option D)** is an autoimmune blistering disease caused by antibodies against desmoglein 1 and 3. While it is a severe condition, it is **not** typically considered a marker for internal malignancy. In contrast, *Paraneoplastic Pemphigus* (a distinct entity) is associated with lymphoreticular malignancies, but the classic Pemphigus vulgaris is not. **Analysis of Incorrect Options:** * **Acanthosis nigricans (Option A):** While often associated with insulin resistance, the sudden onset of "Malignant Acanthosis Nigricans" (especially involving the palms/tripe palms) is a classic marker for **Gastric Adenocarcinoma**. * **Dermatomyositis (Option B):** This inflammatory myopathy has a strong association with internal cancers (especially ovarian, lung, and breast) in about 10-25% of adult cases. * **Bullous pemphigoid (Option C):** While primarily an autoimmune disease of the elderly, it is frequently listed as a potential paraneoplastic marker, particularly for neurological or hematological malignancies. **High-Yield Clinical Pearls for NEET-PG:** * **Leser-Trélat Sign:** Sudden eruption of multiple seborrheic keratoses; strongly associated with GI malignancies. * **Sweet Syndrome:** Acute febrile neutrophilic dermatosis; associated with Acute Myeloid Leukemia (AML). * **Necrolytic Migratory Erythema:** The hallmark cutaneous marker for a **Glucagonoma** (Alpha-cell tumor of the pancreas). * **Sister Mary Joseph Nodule:** A palpable nodule at the umbilicus representing metastasis from an intra-abdominal malignancy (usually gastric).

Q: What is the commonest systemic abnormality associated with renal cell carcinoma?

Elevated ESR. **Explanation:** Renal Cell Carcinoma (RCC) is famously known as the **"Internist’s Tumor"** because of its frequent association with diverse paraneoplastic syndromes and systemic manifestations. **Why Elevated ESR is the Correct Answer:** Elevated Erythrocyte Sedimentation Rate (ESR) is the **most common** systemic/laboratory abnormality in RCC, occurring in approximately **50% to 60%** of patients. It is a non-specific marker of inflammation and tissue destruction. While it lacks diagnostic specificity, a very high ESR often correlates with advanced stage or metastatic disease. **Analysis of Incorrect Options:** * **Hypertension (A):** Occurs in about 20–40% of cases. It is caused by renin secretion by the tumor, compression of the renal artery (Goldblatt mechanism), or hypercalcemia. While common, its frequency is lower than elevated ESR. * **Polycythemia (B):** This is a classic "textbook" association due to excess Erythropoietin (EPO) production, but it actually occurs in only **3–5%** of patients. Interestingly, **anemia** is far more common in RCC than polycythemia. * **Pyrexia (D):** Fever is seen in about 20% of patients, likely due to the release of endogenous pyrogens like Interleukin-6 (IL-6). **High-Yield Clinical Pearls for NEET-PG:** * **Stauffer’s Syndrome:** Reversible hepatic dysfunction (elevated ALP, bilirubin) in the absence of liver metastases. * **Classic Triad:** Hematuria, flank pain, and palpable mass (seen in only 10% of cases, usually indicates advanced disease). * **Most Common Histology:** Clear cell carcinoma (originates from the Proximal Convoluted Tubule). * **Most Common Site of Metastasis:** Lung ("Cannonball" secondaries).

Q: Benign prostatic hyperplasia first develops in which zone of the prostate?

Periurethral transition zone. **Explanation:** The prostate gland is anatomically divided into distinct zones according to **McNeal’s classification**. Understanding these zones is crucial for differentiating between benign and malignant pathologies. **1. Why the Transition Zone is Correct:** Benign Prostatic Hyperplasia (BPH) is a nodular proliferation of epithelial and stromal cells that characteristically originates in the **Transition Zone (TZ)**, which surrounds the proximal prostatic urethra. As these nodules enlarge, they compress the urethra, leading to the classic Lower Urinary Tract Symptoms (LUTS) such as hesitancy, weak stream, and urgency. **2. Analysis of Incorrect Options:** * **Peripheral Zone (PZ):** This is the largest zone (70% of glandular tissue) and is the primary site for **Prostate Cancer (70-80%)** and prostatitis. Because it is located posteriorly, tumors here are easily palpable via Digital Rectal Examination (DRE). * **Central Zone (CZ):** This zone surrounds the ejaculatory ducts. It is rarely the primary site for BPH or carcinoma (only about 1-5% of cancers). * **Anterior Fibromuscular Stroma:** This is a non-glandular region composed of muscular and fibrous tissue. It does not contain the glandular elements required for BPH or adenocarcinoma development. **High-Yield Clinical Pearls for NEET-PG:** * **BPH vs. Cancer:** BPH starts "inside" (Transition Zone/Periurethral), causing early urinary symptoms. Cancer starts "outside" (Peripheral Zone), often remaining asymptomatic until advanced. * **DRE Findings:** In BPH, the prostate feels smooth, elastic, and firm with a lost median sulcus. In malignancy, it feels hard, nodular, and irregular. * **Surgical Landmark:** During TURP (Transurethral Resection of the Prostate), the surgeon removes the hyperplastic tissue of the transition zone down to the "surgical capsule."

Question 1

Bell clapper testis predisposes to which of the following conditions?

Accepted Answer

Torsion of the testis

Answer

Varicocele

Answer

Cancer of the testis

Answer

Hydrocele

Question 2

All of the following are true about Carcinoma Penis except?

Accepted Answer

Most common type is verrucous carcinoma

Answer

Spreads hematogenously

Answer

Slowly progressive

Answer

Leads to erosion of artery

Question 3

Which of the following conditions does NOT predispose to torsion of the testis?

Accepted Answer

Epididymo-orchitis

Answer

Inversion of the testis

Answer

High investment of the tunica vaginalis

Answer

Separation of the epididymis from the body of the testis

Question 4

Ureteral tumors occur most frequently in which part of the ureter?

Accepted Answer

Lower one-third

Answer

Upper one-third

Answer

Middle one-third

Answer

Equally along the length

Question 5

High inguinal orchidectomy specimen showed tumor testis with involvement of epididymis without vascular invasion; what is the stage?

Accepted Answer

T1

Answer

T2

Answer

T3

Answer

T4

Question 6

All of the following skin conditions are considered as skin markers for internal malignancy except?

Accepted Answer

Pemphigus vulgaris

Answer

Acanthosis nigricans

Answer

Dermatomyositis

Answer

Bullous pemphigoid

Question 7

An elderly female patient presented with hematuria and on imaging was found to have stage T2 transitional cell carcinoma of the bladder. Which of the following statements about the management of her condition is true?

Accepted Answer

There is a substantial chance of requiring cystectomy within 5 years after transurethral resection for stage T2 disease.

Answer

History of smoking is a significant risk factor.

Answer

Cystoscopic fulguration may be used for superficial tumors but not typically for stage T2.

Answer

Chemotherapy may have a role in neoadjuvant or adjuvant settings.

Question 8

What is the commonest systemic abnormality associated with renal cell carcinoma?

Accepted Answer

Elevated ESR

Answer

Hypertension

Answer

Polycythemia

Answer

Pyrexia

Question 9

Benign prostatic hyperplasia first develops in which zone of the prostate?

Accepted Answer

Periurethral transition zone

Answer

Peripheral zone

Answer

Central zone

Answer

Anterior fibromuscular stroma

Question 10

Terminal hematuria is most commonly associated with which anatomical structure?

Accepted Answer

Prostatic urethra

Answer

Urethra

Answer

Kidney

Answer

Bladder

Urology — MCQs

Urology — MCQs

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