Urology Practice Questions

Q: In a 3-glass urine test, thread is observed in the first glass. What is the probable diagnosis?

Prostatitis. **Explanation:** The **3-glass urine test** (Stamey-Meares test) is a traditional diagnostic tool used to localize the site of infection or inflammation in the lower urinary tract. **Why Prostatitis is correct:** In this test, the patient voids into three separate containers. The presence of **"threads"** (mucopurulent strands or debris) specifically in the **first glass** (initial 10-15 ml of urine) is a classic clinical sign of **chronic prostatitis**. These threads represent inflammatory exudate and prostatic secretions that have accumulated in the prostatic urethra and are washed out by the initial stream of urine. While the 4-glass test (including prostatic massage) is the gold standard, the appearance of threads in the first glass remains a high-yield association for prostatitis in surgical exams. **Analysis of Incorrect Options:** * **Cystitis:** Inflammation of the bladder typically results in pyuria (cloudy urine) or hematuria that is uniform across all three glasses (total pyuria). * **Urethritis:** While urethritis also affects the first glass, it usually presents with frank pus or discharge rather than the distinct "threads" characteristic of prostatic involvement. * **Pyelonephritis:** This is an upper urinary tract infection. The urine would show uniform cloudiness and systemic symptoms (fever, flank pain), not localized threads in the initial stream. **Clinical Pearls for NEET-PG:** * **1st Glass (Initial):** Represents the Urethra/Prostate. * **2nd Glass (Midstream):** Represents the Bladder/Upper Tract. * **3rd Glass (Terminal):** Represents the Prostate/Bladder neck (as the prostate contracts at the end of micturition). * **High-Yield Fact:** If the question mentions "threads in the *last* glass," it even more strongly points toward a prostatic origin due to terminal contraction.

Q: What is the most common site of metastasis for prostate cancer?

Lumbar spine. **Explanation:** Prostate cancer has a strong predilection for hematogenous spread to the axial skeleton, specifically causing **osteoblastic (sclerotic) metastases**. **Why the Lumbar Spine is Correct:** The most common site of metastasis for prostate cancer is the **lumbar spine**. This occurs primarily due to the **Batson venous plexus**, a valveless system of veins that connects the deep pelvic veins (prostatic venous plexus) directly to the internal vertebral venous plexus. Because these veins are valveless, changes in intra-abdominal pressure allow cancer cells to bypass the systemic circulation (and the lungs) to seed directly into the vertebrae. The spread typically follows an ascending pattern: Pelvis → Lumbar Spine → Thoracic Spine → Skull. **Analysis of Incorrect Options:** * **A. Skull:** While prostate cancer can spread to the skull, it is a late-stage manifestation and significantly less common than spinal involvement. * **B. Femur:** The proximal femur is a common site for many bony metastases, but in prostate cancer, the axial skeleton (spine and pelvis) is involved much earlier and more frequently than the appendicular skeleton. * **D. Sacrum:** The sacrum and pelvis are often the *first* bones involved due to proximity, but statistically, the **lumbar spine** remains the most frequently documented site of involvement in clinical practice and imaging. **NEET-PG High-Yield Pearls:** * **Osteoblastic Lesions:** Prostate cancer is the classic cause of sclerotic/radio-opaque bone lesions (unlike Multiple Myeloma or RCC, which are lytic). * **Batson’s Plexus:** Key anatomical route for retrograde spread. * **Investigation of Choice:** **Radionuclide Bone Scan (Technetium-99m)** is the most sensitive screening tool for detecting bony metastases. * **Tumor Marker:** PSA >20 ng/mL significantly increases the probability of bone metastasis.

Q: In the treatment of varicocele, testicular vein ligation is performed at which level?

Above the inguinal ligament. **Explanation:** The primary objective of varicocele surgery (Varicocelectomy) is to ligate the dilated pampiniform plexus of veins while preserving the testicular artery and lymphatics. **Why Option A is Correct:** The most common surgical approach is the **Palomo procedure (High Ligation)**. In this technique, the testicular vein is ligated **above the inguinal ligament** (retroperitoneal level) near the internal inguinal ring. At this level, the testicular vein has usually coalesced into one or two large trunks, making ligation technically simpler and reducing the risk of recurrence compared to distal sites where the venous plexus is more complex. **Why the Other Options are Incorrect:** * **Option B (Below the inguinal ligament):** This refers to the **Sub-inguinal approach (Marmor technique)**. While common in microsurgery, the standard teaching for "testicular vein ligation" traditionally refers to the high ligation (Palomo) or inguinal (Ivanissevich) levels. Sub-inguinal ligation involves many more small venous branches, increasing the risk of missing collateral veins. * **Option C (Neck of the sac):** This is a landmark used in **hernia repair** (indirect inguinal hernia), not varicocele surgery. * **Option D (Scrotum):** Scrotal approaches are avoided because they carry a high risk of damaging the testicular artery and causing scrotal edema or hematoma due to the extensive network of veins in the scrotum. **NEET-PG High-Yield Pearls:** * **Most common side:** Left side (due to the left testicular vein entering the left renal vein at a right angle). * **Sudden right-sided varicocele:** Always rule out a retroperitoneal tumor (e.g., Renal Cell Carcinoma). * **Gold Standard Treatment:** Microsurgical sub-inguinal varicocelectomy (lowest recurrence rate and lowest complication rate, specifically hydrocele). * **Indication for surgery:** Infertility (abnormal semen analysis), testicular atrophy, or severe pain.

Q: A patient who has undergone pancreaticoduodenectomy for ampullary carcinoma presents on the 3rd postoperative day with a Foley's catheter that cannot be deflated and removed. What is the next step to remove the catheter?

Ultrasound-guided puncture of the balloon. ### Explanation A non-deflating Foley’s catheter is a common urological emergency, usually caused by a faulty valve or a blocked inflation channel (often due to crystallization of the fluid). **Why Option A is Correct:** When conservative methods (like cutting the valve or using a fine guide wire) fail, **ultrasound-guided percutaneous puncture** of the balloon is the preferred next step. It is safe, precise, and can be performed transabdominally, transrectally, or transvaginally. Ultrasound guidance ensures that the needle accurately targets the balloon while avoiding injury to the bladder wall or surrounding structures. **Why Other Options are Incorrect:** * **Option B:** CT guidance is unnecessary, expensive, and involves radiation. Ultrasound is faster and more accessible at the bedside. * **Option C:** Advancing the catheter does not solve the deflation issue and provides no mechanism for rupture. * **Option D:** Injecting water or air until the balloon bursts (over-inflation) is **contraindicated**. This can cause the balloon to fragment into multiple pieces, which may act as a nidus for future stone formation or cause severe bladder spasms and mucosal trauma. **High-Yield Clinical Pearls for NEET-PG:** * **First-line management:** Lubricate the valve and attempt to bypass the blockage with a fine wire. * **Chemical methods:** Instilling ether or mineral oil to dissolve the balloon is now **obsolete** because it causes severe chemical cystitis. * **Post-removal care:** Always inspect the removed balloon to ensure it is intact. If fragments are suspected to be left behind, a cystoscopy is mandatory. * **Prevention:** Use only sterile water to inflate the balloon; saline should be avoided as it can crystallize and block the channel.

Q: A 72-year-old male presents for a routine medical examination. Digital rectal examination reveals a nodule on the prostate. Serum examination shows elevated PSA levels. What is the next step in the investigation?

Transrectal ultrasound-guided prostate biopsy. **Explanation:** The clinical presentation of a **palpable nodule** on Digital Rectal Examination (DRE) and **elevated Prostate-Specific Antigen (PSA)** levels is highly suspicious for Prostate Cancer. In such cases, the definitive next step is a tissue diagnosis to confirm malignancy and determine the Gleason score. **Why Option D is Correct:** **Transrectal Ultrasound (TRUS)-guided biopsy** is the standard procedure for obtaining prostatic tissue. It typically involves a systematic 12-core biopsy (sampling the apex, mid-section, and base of both lobes). While multiparametric MRI (mpMRI) is increasingly used to target suspicious areas, TRUS-guided biopsy remains the definitive diagnostic step following abnormal screening tests (DRE/PSA). **Why Other Options are Incorrect:** * **A. CT Scan:** CT is poor at visualizing intra-prostatic architecture. It is used for staging (detecting lymphadenopathy) after a diagnosis is confirmed, not for initial diagnosis. * **B. IVP:** This is used to visualize the collecting system of the kidneys and ureters. It has no role in the diagnosis of prostate cancer. * **C. Prostatic Massage:** This is indicated for diagnosing chronic prostatitis. In suspected malignancy, massage is contraindicated as it can transiently spike PSA levels and provides no histological data. **High-Yield Clinical Pearls for NEET-PG:** * **PSA Cut-off:** Generally, >4 ng/mL is considered the threshold for further evaluation, though age-specific ranges apply. * **Most Common Site:** 70% of prostate cancers arise in the **Peripheral Zone** (hence palpable on DRE). * **Metastasis:** The most common site of distant spread is the bone (specifically **osteoblastic lesions**). The Batson venous plexus explains the spread to the lumbar spine. * **Gleason Scoring:** Based on glandular architecture, not nuclear atypia. It is the most important prognostic factor.

Q: Which of the following is NOT a feature of carcinoma of the penis?

Paget's disease is not a premalignant disease.. **Explanation:** Carcinoma of the penis is primarily a squamous cell carcinoma (SCC) associated with chronic irritation and HPV infection. **Why Option B is the correct answer:** Extramammary Paget’s disease of the penis is indeed a **premalignant condition**. It is an intraepithelial neoplasia (carcinoma-in-situ) that presents as a persistent, erythematous, velvety, or eczematous plaque. If left untreated, it can progress to invasive adenocarcinoma. Therefore, the statement "Paget's disease is not a premalignant disease" is false. **Analysis of other options:** * **Option A:** Neonatal circumcision provides near-total immunity against penile cancer by preventing phimosis and the accumulation of smegma (a known carcinogen). Note that circumcision later in life does not offer the same level of protection. * **Option C:** The primary route of spread for penile SCC is lymphatic. The **inguinal lymph nodes** (superficial and deep) are the first site of metastasis. The presence of nodal involvement is the most significant prognostic factor. * **Option D:** Surgery (ranging from wide local excision/glansectomy to partial or total penectomy) remains the **gold standard treatment** for the primary tumor. **High-Yield Clinical Pearls for NEET-PG:** * **Premalignant lesions:** Erythroplasia of Queyrat (glans/prepuce), Bowen’s disease (shaft), and Leukoplakia. * **Sentinel Node:** The **Cabanas node** (superomedial group of superficial inguinal nodes) is classically described as the first node involved. * **Risk Factors:** Phimosis (strongest association), HPV 16 and 18, smoking, and poor hygiene. * **Staging:** Uses the TNM system; inguinal lymphadenectomy is indicated if nodes remain palpable after 6 weeks of antibiotics or if the primary tumor is high-grade.

Q: Circumcision is not indicated in which of the following conditions?

Hypospadias. ### Explanation The correct answer is **Hypospadias**. **1. Why Hypospadias is the Correct Answer:** In hypospadias, the urethral meatus is located on the ventral aspect of the penis rather than at the tip of the glans. Circumcision is **strictly contraindicated** in these patients because the prepuce (foreskin) is essential for surgical repair. The vascularized skin of the prepuce is used as a flap or graft (e.g., Mathieu’s flap or Duckett’s procedure) to reconstruct the missing portion of the urethra (urethroplasty) and to provide skin coverage. Performing a circumcision would deprive the surgeon of this vital reconstructive material. **2. Why the Other Options are Wrong:** * **Paraphimosis (A):** This is a urological emergency where a retracted foreskin becomes trapped behind the glans, causing venous congestion. While the initial treatment is manual reduction, dorsal slit or formal circumcision is indicated to prevent recurrence. * **Balanoposthitis (B):** This refers to inflammation of the glans and the prepuce. Recurrent or chronic balanoposthitis (often seen in diabetics) is a common indication for circumcision to maintain local hygiene and prevent scarring/phimosis. * **Carcinoma of the Penis (D):** Circumcision is often performed as part of the management or biopsy process for penile cancer. Furthermore, neonatal circumcision is known to be a protective factor against the development of squamous cell carcinoma of the penis later in life. **Clinical Pearls for NEET-PG:** * **Absolute Contraindications to Circumcision:** Hypospadias, Epispadias, Chordee (without hypospadias), and Bleeding diathesis. * **Phimosis:** Physiological phimosis is normal up to age 3; pathological phimosis (e.g., BXO - Balanitis Xerotica Obliterans) is a definitive indication for circumcision. * **Complication:** The most common complication of circumcision is **hemorrhage**, followed by infection.

Q: What is the treatment of choice for a patient with stage III non-seminomatous testicular tumor?

Chemotherapy. **Explanation:** The management of testicular tumors depends on the histological type (Seminoma vs. Non-Seminomatous Germ Cell Tumor - NSGCT) and the clinical stage. **Stage III NSGCT** indicates metastatic disease beyond the retroperitoneal nodes (e.g., supradiaphragmatic lymph nodes or visceral organs like the lungs). **Why Chemotherapy is the Treatment of Choice:** NSGCTs are highly chemosensitive but relatively radioresistant. For advanced stages (Stage IIB, IIC, and III), **platinum-based combination chemotherapy** is the gold standard. The standard regimen is **BEP (Bleomycin, Etoposide, and Cisplatin)**. Chemotherapy is used as the primary treatment to achieve systemic control of the disease. **Analysis of Incorrect Options:** * **Radiotherapy:** While Seminomas are exquisitely radiosensitive, **NSGCTs are radioresistant**. Radiotherapy has no role in the primary management of NSGCT. * **Surgery:** In Stage I NSGCT, Radical Orchidectomy followed by surveillance or Nerve-Sparing Retroperitoneal Lymph Node Dissection (RPLND) may be used. However, in Stage III, surgery is reserved for **residual masses** (>1 cm) that remain after the completion of chemotherapy. * **Hormonal Therapy:** This has no role in the management of germ cell tumors; it is primarily used in prostate cancer. **High-Yield Clinical Pearls for NEET-PG:** * **Tumor Markers:** NSGCTs often secrete **AFP** (Alpha-fetoprotein) and **beta-hCG**. Note: AFP is *never* elevated in pure seminomas. * **Most Common Site of Metastasis:** The first site of lymphatic spread is the **retroperitoneal lymph nodes** (Para-aortic). * **Post-Chemo Residual Mass:** If markers normalize but a mass >1cm remains in NSGCT, the next step is **RPLND** to rule out teratoma or viable tumor. * **Best Prognosis:** Seminoma; **Worst Prognosis:** Choriocarcinoma.

Question 1

In a 3-glass urine test, thread is observed in the first glass. What is the probable diagnosis?

Accepted Answer

Prostatitis

Answer

Cystitis

Answer

Urethritis

Answer

Pyelonephritis

Question 2

What is the most common site of metastasis for prostate cancer?

Accepted Answer

Lumbar spine

Answer

Skull

Answer

Femur

Answer

Sacrum

Question 3

In the treatment of varicocele, testicular vein ligation is performed at which level?

Accepted Answer

Above the inguinal ligament

Answer

Below the inguinal ligament

Answer

Neck of the sac

Answer

Scrotum

Question 4

A patient who has undergone pancreaticoduodenectomy for ampullary carcinoma presents on the 3rd postoperative day with a Foley's catheter that cannot be deflated and removed. What is the next step to remove the catheter?

Accepted Answer

Ultrasound-guided puncture of the balloon

Answer

CT-guided puncture of the balloon

Answer

Advance the catheter until the balloon ruptures, then remove

Answer

Inject water until the balloon ruptures, then remove the catheter

Question 5

A 72-year-old male presents for a routine medical examination. Digital rectal examination reveals a nodule on the prostate. Serum examination shows elevated PSA levels. What is the next step in the investigation?

Accepted Answer

Transrectal ultrasound-guided prostate biopsy

Answer

CT scan of the pelvis

Answer

Intravenous pyelogram (IVP)

Answer

Prostatic massage for examination of secretions

Question 6

Which of the following is NOT a feature of carcinoma of the penis?

Accepted Answer

Paget's disease is not a premalignant disease.

Answer

Circumcision soon after birth provides total immunity.

Answer

Metastasis to inguinal nodes.

Answer

Surgery is the treatment of choice.

Question 7

Circumcision is not indicated in which of the following conditions?

Accepted Answer

Hypospadias

Answer

Paraphimosis

Answer

Balanoposthitis

Answer

Carcinoma of the penis

Question 8

Ectopic testis is found in all locations except?

Accepted Answer

Perineal

Answer

Lumbar

Answer

Intra-abdominal

Answer

Inguinal

Question 9

What is the treatment of choice for a patient with stage III non-seminomatous testicular tumor?

Accepted Answer

Chemotherapy

Answer

Radiotherapy

Answer

Hormonal therapy

Answer

Surgery

Question 10

All are true about bulbar urethral rupture, except?

Accepted Answer

Floating prostate on per rectal examination

Answer

Perineal hematoma

Answer

Collection of urine in the perineum

Answer

Bleeding per urethra

Urology — MCQs

Urology — MCQs

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