Urology Practice Questions

Q: Which of the following statements about retroperitoneal fibrosis is FALSE?

It is more common in females.. **Explanation:** Retroperitoneal Fibrosis (RPF) is a rare fibro-inflammatory condition characterized by the development of extensive fibrosis throughout the retroperitoneum, which can entrap and compress vital structures. **Why Option B is the Correct Answer (The False Statement):** Retroperitoneal fibrosis is actually **more common in males**, with a male-to-female ratio of approximately **2:1 to 3:1**. It typically presents in the 5th to 6th decades of life. Therefore, the statement that it is more common in females is incorrect. **Analysis of Other Options:** * **Option A:** The **ureter** is indeed the most commonly involved structure. The fibrosis typically starts at the level of the aortic bifurcation and spreads laterally, causing **medial deviation** and extrinsic compression of the ureters, leading to hydronephrosis. * **Option C:** Approximately 70% of cases are idiopathic, and this primary form is eponymously known as **Ormond’s disease**. It is now frequently associated with **IgG4-related disease**. * **Option D:** **Corticosteroids** (e.g., Prednisolone) are the first-line medical treatment. They work by reducing the inflammatory response and halting the progression of fibrosis. Immunosuppressants like Azathioprine or Tamoxifen may be used as adjuncts. **High-Yield Clinical Pearls for NEET-PG:** * **Classic Triad on IVP:** Hydronephrosis, medial deviation of the middle third of the ureters, and extrinsic ureteral compression. * **Secondary Causes:** Drugs (notably **Methysergide**, Beta-blockers, Hydralazine), malignancy, and infections (TB, Actinomycosis). * **Surgery:** If medical therapy fails or obstruction is severe, **Ureterolysis** (freeing the ureter from the fibrous plaque) with **omental wrapping** is the surgical procedure of choice. * **Lab Marker:** Elevated ESR and CRP are common indicators of disease activity.

Q: What is the most important prognostic indicator for renal cell carcinoma?

Pathological staging. **Explanation:** In Renal Cell Carcinoma (RCC), the **Pathological Stage (TNM staging)** is universally recognized as the **single most important prognostic factor** for determining patient survival. Staging reflects the anatomical extent of the disease, specifically whether the tumor is confined to the kidney, involves Gerota’s fascia, extends into the renal vein/vena cava, or has spread to lymph nodes and distant organs. * **Pathological Staging (Correct):** The 5-year survival rate is directly correlated with the TNM stage. For instance, Stage I (T1N0M0) has a survival rate of >90%, whereas Stage IV (metastatic) drops significantly to <10-15%. * **Nuclear Grade (Incorrect):** Specifically the **Fuhrman Grade** (or the newer WHO/ISUP system), assesses the aggressiveness of the cells based on nuclear size and prominence of nucleoli. While it is a strong predictor of survival, it is secondary to the anatomical stage. * **Histological Type (Incorrect):** While Clear Cell RCC generally has a worse prognosis than Chromophobe or Papillary types, staging remains the dominant predictor across all subtypes. * **Tumor Size (Incorrect):** Size is a component of the "T" (Tumor) in TNM staging. While important (e.g., T1a vs. T1b), it is the overall stage (including nodal and distant spread) that dictates prognosis. **High-Yield Clinical Pearls for NEET-PG:** * **Most common histological type:** Clear Cell RCC (associated with VHL gene deletion on Chromosome 3p). * **Most common site of metastasis:** Lung ("Cannonball" secondaries). * **Triad of RCC:** Hematuria, Flank pain, and Palpable mass (seen in only 10% of cases, usually indicates advanced stage). * **Robson’s Staging:** An older staging system for RCC, now largely replaced by the TNM system.

Q: A 60-year-old male, a chronic smoker, presented with gross hematuria, pain in the left flank, along with a significant history of weight loss, fever, and shortness of breath for 3 months. On examination, a firm mass measuring about 5x5 cm was palpated in the left flank, and a left-sided varicocele was noted. Lab findings revealed anemia along with hypercalcemia. Kidney biopsy was performed. All of the following are approved treatments for the condition described, except:

Nilotinib. ### Explanation **Diagnosis: Metastatic Renal Cell Carcinoma (RCC)** The clinical presentation is a classic textbook case of **Renal Cell Carcinoma (RCC)**. The patient exhibits the "Too late triad" (Flank pain, Hematuria, and Palpable mass), systemic symptoms (weight loss, fever), and paraneoplastic syndromes (Hypercalcemia, Anemia). The **left-sided varicocele** is a high-yield sign caused by the tumor obstructing the left renal vein, into which the left gonadal vein drains. Shortness of breath suggests pulmonary metastasis. **Why Nilotinib is the Correct Answer:** * **Nilotinib** is a second-generation Tyrosine Kinase Inhibitor (TKI) specifically used for **Chronic Myeloid Leukemia (CML)**. It targets the BCR-ABL protein. It has no approved role in the management of RCC. **Why the other options are incorrect (Approved for RCC):** * **Sunitinib & Pazopanib (Options A & B):** These are multi-targeted TKIs that inhibit VEGF receptors. They are standard first-line targeted therapies for advanced or metastatic clear cell RCC. * **Temsirolimus (Option C):** This is an **mTOR inhibitor**. It is specifically indicated for patients with advanced RCC who have a poor prognosis (based on MSKCC/Heng criteria). **High-Yield Clinical Pearls for NEET-PG:** * **Most common histological type:** Clear cell RCC (originates from the Proximal Convoluted Tubule). * **Stauffer Syndrome:** Reversible hepatic dysfunction (elevated LFTs) in the absence of liver metastasis; a known paraneoplastic syndrome of RCC. * **Varicocele:** A right-sided varicocele is more concerning for an underlying mass because the right gonadal vein drains directly into the IVC; a new-onset left varicocele in an older male must always trigger a search for RCC. * **Treatment of Choice:** Radical Nephrectomy for localized disease; Targeted therapy (TKIs/mTOR inhibitors/Immunotherapy) for metastatic disease. RCC is notoriously **resistant** to chemotherapy and radiotherapy.

Q: A 21-year-old man presents with scrotal swelling and pain. What is the MOST likely diagnosis?

Torsion with an infarcted testicle. ***Torsion with an infarcted testicle*** - **Testicular torsion** beyond **12-24 hours** leads to complete **ischemic necrosis** and **infarction**, appearing **black/necrotic** grossly. - **Late presentation** with **infarcted testicle** requires **orchidectomy** rather than detorsion due to non-viable tissue and risk of complications. *Torsion with a blue testicle* - **Blue discoloration** indicates **early torsion** (typically **<6 hours**) where the testicle is still **viable** and salvageable. - **Blue color** suggests **venous congestion** without complete **arterial compromise** or tissue death. *Acute epididymo-orchitis* - Typically presents with **gradual onset** pain and swelling, often with **urinary symptoms** and **fever**. - **Cremasteric reflex** is usually **preserved**, and **elevation** of the scrotum may **relieve pain** (Prehn's sign). *Seminoma* - Presents as a **painless**, **firm testicular mass** rather than acute scrotal pain and swelling. - **Peak incidence** in **30-40 years** age group, and typically has **insidious onset** without acute inflammatory signs.

Q: Radiotherapy is the treatment of choice for which one of the following tumors?

Rodent ulcer. **Explanation:** **Rodent Ulcer (Basal Cell Carcinoma - BCC):** Rodent ulcer is the clinical term for Basal Cell Carcinoma (BCC). It is highly **radiosensitive**. While surgical excision is often the primary treatment for small lesions, radiotherapy is considered a **treatment of choice**, especially in elderly patients or for lesions located in areas where surgery would be disfiguring (e.g., medial canthus of the eye, nose, or ear). It provides excellent cosmetic results and high cure rates for superficial and nodular variants. **Why the other options are incorrect:** * **Verrucous Carcinoma:** This is a well-differentiated variant of Squamous Cell Carcinoma (SCC). It is notoriously **radioresistant**. Importantly, radiotherapy is contraindicated because it can trigger **anaplastic transformation** into a highly aggressive, metastatic spindle cell carcinoma. * **Malignant Melanoma:** Melanoma is traditionally considered **radioresistant**. The primary treatment is wide local excision with adequate margins. Radiotherapy is generally reserved for palliation or specific adjuvant settings (e.g., brain metastases). * **Marjolin’s Ulcer:** This is an aggressive SCC arising in chronic scars or non-healing wounds. It is relatively **radioresistant** and has a high risk of metastasis. The treatment of choice is wide local excision with a 2-cm margin; radiotherapy is only used if surgery is not possible. **High-Yield Clinical Pearls for NEET-PG:** * **BCC (Rodent Ulcer):** Most common skin cancer; characterized by "pearly" borders and telangiectasia; rarely metastasizes but is locally invasive. * **Radiosensitivity Rule:** BCC is more radiosensitive than SCC. * **Marjolin’s Ulcer:** Most common site is the lower limb; characterized by a long latent period (average 30 years). * **Verrucous Carcinoma:** Also known as **Ackerman’s tumor**; common in the oral cavity (tobacco chewers) and glans penis (Buschke-Löwenstein tumor).

Q: Which instrument is used for aerial embolectomy?

Aerial embolectomy. ### Explanation The correct answer is **Aerial Embolectomy**. The question refers to the **Fogarty Embolectomy Catheter**, which is the gold-standard instrument used for removing fresh arterial thrombi or emboli (aerial/arterial embolectomy). **Why it is correct:** The Fogarty catheter is a thin, flexible hollow tube with an inflatable balloon at its tip. During an embolectomy, the catheter is passed through an arteriotomy, distal to the clot. Once past the obstruction, the balloon is inflated and the catheter is withdrawn, effectively "dragging" the embolus out of the vessel. This procedure is crucial in managing acute limb ischemia. **Why the other options are incorrect:** * **Bladder catheterization:** This is typically performed using a **Foley catheter** (self-retaining) or a **Nélaton catheter** (straight). While they also use balloons, their design and material are not suited for the high-pressure environment of the arterial system. * **Control of upper GI bleeding:** This usually involves the **Sengstaken-Blakemore tube** or **Minnesota tube**, which are multi-lumen tubes with large gastric and esophageal balloons used specifically for esophageal variceal tamponade. * **Insertion of a central line:** This is performed using a **Triple Lumen Catheter** or a **PICC line**, typically via the Seldinger technique. These do not utilize the balloon-extraction mechanism characteristic of an embolectomy. **High-Yield Clinical Pearls for NEET-PG:** * **Inventor:** Thomas J. Fogarty (1961). * **Fluid used for inflation:** Always use **Normal Saline** (never air) to inflate the balloon to ensure controlled pressure and prevent air embolism in case of balloon rupture. * **Size:** Measured in **French (F)**; common sizes range from 2F to 7F. * **Complications:** Intimal injury, arterial dissection, or vessel rupture if the balloon is over-inflated.

Q: Transitional cell carcinoma is most commonly seen in which of the following anatomical locations?

Urinary bladder. **Explanation:** **1. Why Urinary Bladder is Correct:** Transitional Cell Carcinoma (TCC), now more commonly referred to as **Urothelial Carcinoma**, arises from the transitional epithelium (urothelium) that lines the urinary tract from the renal pelvis to the proximal urethra. The **urinary bladder** is the most common site for TCC, accounting for over 90% of all bladder cancers and approximately 90-95% of all urothelial tumors. The large surface area of the bladder and the prolonged contact time with concentrated carcinogens in the urine (like cigarette smoke metabolites or aniline dyes) make it the primary site for malignant transformation. **2. Why Other Options are Incorrect:** * **Prepuce:** The prepuce (foreskin) is covered by keratinized stratified squamous epithelium. Therefore, the most common malignancy here is **Squamous Cell Carcinoma (SCC)**. * **Testis:** The most common primary tumors of the testis are **Germ Cell Tumors (GCTs)**, such as Seminomas and Non-Seminomatous Germ Cell Tumors (NSGCTs). * **Prostate:** The prostate is a glandular organ; hence, the overwhelming majority (95%) of prostate cancers are **Adenocarcinomas**. **3. High-Yield Clinical Pearls for NEET-PG:** * **Risk Factors:** Smoking (most common), exposure to aromatic amines (2-Naphthylamine), and long-term Cyclophosphamide use. * **Field Cancerization:** TCC exhibits a "field effect," meaning the entire urothelium is at risk. Patients with bladder TCC must be monitored for synchronous or metachronous tumors in the ureters or renal pelvis. * **Presentation:** The classic presentation is **painless gross hematuria** in an elderly male. * **Schistosomiasis Link:** While TCC is the most common bladder cancer globally, *Schistosoma haematobium* infection is specifically associated with **Squamous Cell Carcinoma** of the bladder.

Q: Which of the following tumors causes invasion of the inferior vena cava (IVC)?

Renal cell carcinoma. **Explanation:** **Renal Cell Carcinoma (RCC)**, specifically the clear cell subtype, is notorious for its tendency to invade the venous system. The tumor cells grow as a solid column (tumor thrombus) into the renal vein and can extend superiorly into the **Inferior Vena Cava (IVC)**. In advanced cases, this thrombus can reach the right atrium. This occurs in approximately 4–10% of patients with RCC. The diagnosis is typically made using Doppler Ultrasound or Contrast-Enhanced CT (CECT), and the level of IVC involvement is a critical factor in surgical planning (Radical Nephrectomy with Thrombectomy). **Analysis of Incorrect Options:** * **Hepatocellular Carcinoma (HCC):** While HCC frequently invades the **portal vein** (leading to portal hypertension), it rarely involves the IVC compared to RCC. * **Gallbladder Carcinoma:** This tumor primarily spreads via direct local invasion into the liver (Segment IV and V) or through lymphatic spread to the cystic and pericholedochal nodes. * **Pancreatic Carcinoma:** Carcinoma of the head of the pancreas typically invades the **superior mesenteric vein (SMV)** or the **portal vein** due to anatomical proximity, rather than the IVC. **High-Yield Clinical Pearls for NEET-PG:** * **Staging:** IVC involvement in RCC is classified using the **Mayo Clinic Classification** (Levels 0 to IV). * **Varicocele:** A classic sign of RCC (especially on the left side) is a non-reducing varicocele, caused by the tumor thrombus obstructing the entry of the left gonadal vein into the left renal vein. * **Triad:** The classic triad of RCC (Flank pain, Hematuria, Palpable mass) is seen in only 10% of cases; hematuria is the most common individual symptom.

Question 1

All of the following are true for torsion of testes EXCEPT?

Accepted Answer

Cough impulse positive

Answer

Trauma to testes

Answer

Due to twisting of spermatic cord with respect to tunica vaginalis

Answer

Intravaginal torsion is commoner

Question 2

Which of the following statements about retroperitoneal fibrosis is FALSE?

Accepted Answer

It is more common in females.

Answer

The ureter is the most commonly involved structure.

Answer

The primary idiopathic form is called Ormond's disease.

Answer

Corticosteroids are the mainstay of treatment.

Question 3

What is the most important prognostic indicator for renal cell carcinoma?

Accepted Answer

Pathological staging

Answer

Nuclear grade

Answer

Histological type

Answer

Tumor size

Question 4

A 60-year-old male, a chronic smoker, presented with gross hematuria, pain in the left flank, along with a significant history of weight loss, fever, and shortness of breath for 3 months. On examination, a firm mass measuring about 5x5 cm was palpated in the left flank, and a left-sided varicocele was noted. Lab findings revealed anemia along with hypercalcemia. Kidney biopsy was performed. All of the following are approved treatments for the condition described, except:

Accepted Answer

Nilotinib

Answer

Sunitinib

Answer

Pazopanib

Answer

Temsirolimus

Question 5

A 21-year-old man presents with scrotal swelling and pain. What is the MOST likely diagnosis?

Accepted Answer

Torsion with an infarcted testicle

Answer

Torsion with a blue testicle

Answer

Acute epididymo-orchitis

Answer

Seminoma

Question 6

Radiotherapy is the treatment of choice for which one of the following tumors?

Accepted Answer

Rodent ulcer

Answer

Verrucous carcinoma

Answer

Malignant melanoma

Answer

Marjolin's ulcer

Question 7

What is the treatment for a complete staghorn calculus with mild hydronephrosis?

Accepted Answer

Percutaneous Nephrolithotomy (PCNL)

Answer

Extracorporeal Shock Wave Lithotripsy (ESWL)

Answer

Ureteroscopy (URS)

Answer

Open Nephrolithotomy

Question 8

Which instrument is used for aerial embolectomy?

Accepted Answer

Aerial embolectomy

Answer

Bladder catheterization

Answer

Control of upper gastrointestinal bleeding

Answer

Insertion of a central line

Question 9

Transitional cell carcinoma is most commonly seen in which of the following anatomical locations?

Accepted Answer

Urinary bladder

Answer

Prepuce

Answer

Testis

Answer

Prostate

Question 10

Which of the following tumors causes invasion of the inferior vena cava (IVC)?

Accepted Answer

Renal cell carcinoma

Answer

Hepatocellular carcinoma

Answer

Gallbladder carcinoma

Answer

Pancreatic carcinoma

Urology — MCQs

Urology — MCQs

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