Urology Practice Questions

Q: A 25-year-old male presented with painless testicular swelling and a history of fever and weight loss. All the following investigations are indicated in this patient, except:

Trans-scrotal biopsy. **Explanation:** The clinical presentation of a **painless testicular swelling** in a young male (25 years old), especially when accompanied by constitutional symptoms like fever and weight loss, is highly suspicious for **Testicular Germ Cell Tumor (GCT)**. **1. Why Trans-scrotal Biopsy is Contraindicated (Correct Answer):** Trans-scrotal biopsy or fine-needle aspiration (FNAC) is strictly **contraindicated** in suspected testicular cancer. The lymphatic drainage of the testis is to the **paraaortic lymph nodes**, while the scrotum drains to the **inguinal lymph nodes**. Performing a trans-scrotal procedure violates the "tunica albuginea" and the scrotal barrier, potentially leading to **scrotal seeding** and altering the natural lymphatic spread to the inguinal nodes. This complicates the staging and surgical management. The definitive diagnosis is always made via **High Inguinal Orchidectomy**. **2. Why other options are indicated:** * **USG Scrotum:** This is the initial investigation of choice. It helps differentiate between intra-testicular and extra-testicular masses and can identify characteristic features of malignancy. * **CT Abdomen and Pelvis:** This is essential for **staging**. It is the gold standard for evaluating the retroperitoneal (paraaortic) lymph nodes, which are the primary site of metastasis. * **Chest X-ray:** Used to screen for pulmonary metastasis (cannon-ball secondaries), which is common in advanced GCTs. **Clinical Pearls for NEET-PG:** * **Gold Standard Treatment:** Radical (High) Inguinal Orchidectomy. * **Lymphatic Drainage:** Testis → Paraaortic nodes; Scrotum → Superficial Inguinal nodes. * **Tumor Markers:** LDH (bulk), AFP (never raised in pure Seminoma), and beta-hCG (Choriocarcinoma/Seminoma). * **Most common type:** Seminoma is the most common single cell type.

Q: In varicocele surgery, by which vein is venous drainage performed?

Cremasteric vein. **Explanation:** The surgical management of varicocele (varicocelectomy) involves the ligation of the dilated and incompetent **pampiniform plexus** of veins, specifically the **internal spermatic veins**. **Why Cremasteric Vein is Correct:** The goal of the surgery is to obstruct the retrograde flow in the internal spermatic veins while preserving the arterial supply and alternative venous return. After the internal spermatic veins are ligated, the venous drainage of the testis is redirected through collateral pathways. The **cremasteric vein** (which drains into the inferior epigastric vein) and the **vasal vein** (which drains into the internal iliac system) become the primary routes for venous outflow. This ensures that the testis does not undergo venous congestion or infarction post-surgery. **Analysis of Incorrect Options:** * **A. Inferior Vena Cava (IVC):** This is the normal drainage site for the *right* testicular vein, but it is not a collateral pathway used after surgery. * **B. Aorta:** The aorta is an artery, not a vein; it provides the arterial supply (testicular artery) rather than venous drainage. * **C. Superior Epigastric Vein:** This vein drains the upper abdominal wall and eventually enters the internal thoracic vein; it does not participate in testicular venous drainage. **Clinical Pearls for NEET-PG:** * **Gold Standard Surgery:** Microsurgical subinguinal varicocelectomy is preferred due to lower recurrence rates and fewer complications (like hydrocele). * **Anatomy:** The left testicular vein joins the **left renal vein** at a right angle, explaining why varicoceles are more common on the left side (due to higher pressure). * **Sudden Onset:** A sudden onset of a right-sided varicocele in an older male should raise suspicion for **Renal Cell Carcinoma (RCC)** obstructing the IVC.

Q: What is the most common tumor in an undescended testis?

Seminoma. **Explanation:** **1. Why Seminoma is the correct answer:** Cryptorchidism (undescended testis) is the most significant risk factor for developing testicular germ cell tumors. Among patients with an undescended testis, **Seminoma** is the most common histological subtype (occurring in approximately 60-90% of cases). The risk is highest in abdominal testes compared to inguinal ones. The underlying pathophysiology involves thermal stress (higher intra-abdominal temperature) and dysgenetic changes in the germ cells. **2. Why other options are incorrect:** * **Teratoma:** While Teratomas are common germ cell tumors, especially in the pediatric age group, they are not the most frequent malignancy associated specifically with cryptorchidism. * **Non-Seminomatous Germ Cell Tumors (NSGCTs):** Although NSGCTs (like Embryonal carcinoma or Yolk sac tumors) can occur in undescended testes, they are statistically less frequent than Seminomas in this clinical context. **3. Clinical Pearls & High-Yield Facts for NEET-PG:** * **Relative Risk:** An undescended testis has a 10 to 40 times higher risk of malignancy than a normal testis. * **Orchidopexy:** Performing an orchidopexy before puberty (ideally before age 1) reduces the risk of malignancy but does **not** eliminate it. Its primary benefit is making the testis accessible for clinical examination and self-monitoring. * **Contralateral Risk:** About 10% of tumors in patients with unilateral cryptorchidism occur in the **normally descended** contralateral testis. * **Most common site:** The most common site for an undescended testis is the **inguinal canal**. * **Management:** If a tumor is suspected, the gold standard diagnostic step is an **Inguinal Orchidectomy**. Trans-scrotal biopsy is strictly contraindicated due to the risk of lymphatic seedling.

Q: Features of carcinoma penis include all except?

Hypospadias is a premalignant lesion. **Explanation:** **Why Hypospadias is the correct answer (Option C):** Hypospadias is a congenital anatomical anomaly where the urethral opening is on the ventral aspect of the penis; it is **not** a premalignant condition. In contrast, premalignant lesions of the penis include **Bowen’s disease** (Erythroplasia of Queyrat), **Leukoplakia**, and **Balantitis xerotica obliterans (BXO)**. **Analysis of other options:** * **Option A:** Carcinoma penis is primarily a lymphophilic tumor. It characteristically metastasizes first to the **inguinal lymph nodes** (superficial followed by deep). The presence of nodal involvement is the most important prognostic factor. * **Option B:** Surgery remains the **gold standard** and treatment of choice. Depending on the stage and location, options range from wide local excision or glansectomy to partial or total penectomy with ilio-inguinal lymph node dissection. * **Option D:** Neonatal circumcision is highly protective. It prevents the accumulation of **smegma** (a byproduct of desquamated epithelial cells), which acts as a chronic irritant and carcinogen. It also reduces the risk of Phimosis, a major risk factor found in 25-75% of cases. **High-Yield Clinical Pearls for NEET-PG:** * **Most common histological type:** Squamous Cell Carcinoma (SCC). * **Risk Factors:** Phimosis (strongest association), HPV 16 & 18, smoking, and poor hygiene. * **Sentinel Node:** The **Cabanas node** (located at the junction of the epigastric and long saphenous veins) is historically considered the first site of metastasis. * **Staging:** TNM staging is used; clinical examination of the groin is crucial as 50% of palpable nodes may be inflammatory rather than metastatic.

Q: Which testicular tumor produces feminizing symptoms?

Sertoli cell tumor. **Explanation:** The correct answer is **Sertoli cell tumor**. These are rare sex cord-stromal tumors that can produce estrogens. In adults, approximately 25-30% of patients present with feminizing symptoms such as **gynecomastia**, loss of libido, and erectile dysfunction due to the peripheral aromatization of hormones or direct estrogen secretion. **Why the other options are incorrect:** * **Seminoma (Option A):** This is the most common germ cell tumor. It typically presents as a painless testicular mass and is associated with elevated **hCG** in only 5-10% of cases, but it does not characteristically cause feminization. * **Teratoma (Option B):** A germ cell tumor composed of multiple germ layers (ectoderm, mesoderm, endoderm). While they can be associated with mixed germ cell tumors, they do not have a primary endocrine function that leads to feminization. * **Leydig cell tumor (Option C):** While these also belong to the sex cord-stromal group and *can* cause gynecomastia, they are primarily known for producing **androgens**. In children, they typically cause precocious puberty (virilization). While feminization is possible in adults, NEET-PG and standard surgical textbooks (like Bailey & Love) frequently highlight **Sertoli cell tumors** specifically for their feminizing potential. **High-Yield Clinical Pearls for NEET-PG:** * **Reinke’s Crystals:** Pathognomonic histological finding for **Leydig cell tumors** (not Sertoli). * **Sertoli Cell Tumors:** Associated with **Peutz-Jeghers Syndrome** and **Carney Complex**. * **Most common testicular tumor in infants:** Yolk sac tumor (associated with high **AFP**). * **Most common bilateral testicular tumor:** Lymphoma (usually in men >60 years).

Q: A patient presented with a hard swelling in the right testis. All are true statements regarding the management of this condition EXCEPT:

Trans-scrotal biopsy is needed. **Explanation:** In any patient presenting with a hard, painless testicular swelling, the primary clinical suspicion is **Testicular Cancer** until proven otherwise. **Why Option A is the correct answer (The "Except" statement):** Trans-scrotal biopsy or scrotal aspiration is **strictly contraindicated** in suspected testicular tumors. The lymphatic drainage of the testis is to the para-aortic nodes, whereas the scrotum drains to the inguinal nodes. Performing a trans-scrotal biopsy violates the "blood-testis barrier" and the scrotal skin, potentially leading to **lymphatic seeding** and altering the natural metastatic pathway of the tumor. This complicates the staging and surgical management of the patient. **Analysis of other options:** * **Options B & C (Inguinal Exploration):** The gold standard for diagnosis and initial treatment is a **Radical Inguinal Orchidectomy**. This involves a high inguinal incision to allow for early vascular control (clamping the spermatic cord at the internal inguinal ring) before manipulating the tumor, preventing hematogenous spread. * **Option D (Scrotal Ultrasonography):** This is the initial investigation of choice. It is highly sensitive (nearly 100%) in distinguishing between intra-testicular and extra-testicular masses and can identify non-palpable lesions. **High-Yield Clinical Pearls for NEET-PG:** * **Lymphatic Drainage:** Testis → Para-aortic nodes; Scrotum → Superficial Inguinal nodes. * **Tumor Markers:** Always check AFP, beta-hCG, and LDH before surgery for staging and prognosis. Note: AFP is *never* elevated in pure seminomas. * **Most Common Type:** Seminoma is the most common germ cell tumor; however, Mixed Germ Cell Tumors are frequently seen. * **Staging:** Contrast-enhanced CT (CECT) of the Abdomen and Pelvis is essential to evaluate para-aortic lymphadenopathy.

Q: PSA is measured in which units?

ng/ml. **Explanation:** **Prostate-Specific Antigen (PSA)** is a glycoprotein enzyme secreted by the epithelial cells of the prostate gland. In clinical practice, PSA is a vital biomarker used for the screening, diagnosis, and monitoring of prostate cancer and other prostatic conditions. **1. Why ng/ml is the correct answer:** PSA circulates in the blood in very minute quantities. The standard unit of measurement for PSA is **nanograms per milliliter (ng/ml)**. In a healthy individual with a normal-sized prostate, the typical "normal" reference range is generally considered to be **0–4 ng/ml**. Because the concentration is so low, using larger units would result in impractical decimal values. **2. Why other options are incorrect:** * **gm/ml (Grams), mg/ml (Milligrams), and mcg/ml (Micrograms):** These units represent much higher concentrations (1 mg is $10^6$ times larger than 1 ng). Measuring PSA in these units would yield values like 0.000000004 gm/ml, which is clinically unusable. These units are typically reserved for serum proteins (like albumin in gm/dl) or drug concentrations, rather than trace tumor markers. **3. Clinical Pearls for NEET-PG:** * **Age-Specific PSA:** PSA levels naturally rise with age due to increasing prostate volume (e.g., 0.75 ng/ml per year** is highly suspicious for malignancy, even if the total PSA is 25%) suggests BPH. * **Causes of Elevated PSA:** Apart from Prostate Cancer, PSA can be elevated in BPH, Prostatitis, Urinary Tract Infections (UTI), and following procedures like DRE, cystoscopy, or prostatic biopsy.

Q: A 49-year-old male with a 35-pack-year smoking history presents with a painless left scrotal mass. Examination revealed microscopic hematuria and normal alpha-fetoprotein (AFP) and lactate dehydrogenase (LDH) levels. What is the most probable cause of the scrotal mass?

Renal cell carcinoma. ### Explanation The correct answer is **Renal Cell Carcinoma (RCC)**. **1. Why Renal Cell Carcinoma is correct:** The clinical presentation of a **painless scrotal mass** (specifically a varicocele) associated with **microscopic hematuria** and a significant **smoking history** is a classic "red flag" for Renal Cell Carcinoma. * **The Anatomical Link:** A left-sided varicocele occurs in RCC when the tumor invades the renal vein or causes extrinsic compression, obstructing the drainage of the **left gonadal (testicular) vein**, which drains directly into the left renal vein at a 90-degree angle. * **Clues in the stem:** Hematuria is the most common presenting sign of RCC. The normal AFP and LDH levels help rule out primary germ cell tumors. **2. Why other options are incorrect:** * **Seminoma:** While it presents as a painless scrotal mass, it typically presents in younger men (30–40s) and would not explain the microscopic hematuria. * **Epididymitis:** This usually presents with acute scrotal pain, fever, and signs of inflammation (Prehn’s sign positive), rather than a painless mass and hematuria. * **Carcinoma of the lung:** While the patient is a smoker, lung cancer does not typically present with a scrotal mass or hematuria unless there is widespread metastasis, which is less likely than a primary renal pathology in this context. **3. Clinical Pearls for NEET-PG:** * **Left vs. Right Varicocele:** A **new-onset left varicocele** in an older male that does not empty when lying supine must be investigated for RCC. A **right-sided varicocele** is even more concerning as it is rarer (the right gonadal vein drains directly into the IVC) and often indicates a retroperitoneal mass or IVC obstruction. * **Classic Triad of RCC:** Hematuria, flank pain, and a palpable mass (seen in only 10% of cases). * **Stauffer Syndrome:** A paraneoplastic syndrome of RCC involving non-metastatic hepatic dysfunction.

Q: What is the drug of choice for renal colic?

Diclofenac. **Explanation:** The management of renal colic focuses on relieving pain and reducing ureteral smooth muscle spasms. **Why Diclofenac is the Correct Answer:** Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), specifically **Diclofenac**, are the **first-line drug of choice** for acute renal colic. The underlying pathophysiology of renal colic involves an increase in intrapelvic pressure due to obstruction, which triggers the release of **Prostaglandins**. Prostaglandins cause further vasodilation (increasing glomerular filtration and pressure) and direct ureteral smooth muscle contraction. Diclofenac inhibits the enzyme cyclooxygenase (COX), thereby blocking prostaglandin synthesis. This reduces ureteral edema, lowers intrarenal pressure, and provides superior analgesia compared to opioids in this specific clinical setting. **Analysis of Incorrect Options:** * **Methadone (A):** A long-acting synthetic opioid primarily used for chronic pain management and opioid detoxification. It is not indicated for acute renal colic. * **Pentazocine (B):** An opioid agonist-antagonist. While it provides analgesia, opioids can cause unwanted side effects like nausea and, theoretically, may increase ureteral pressure or cause spasm of the Sphincter of Oddi. * **Piroxicam (D):** Although an NSAID, it has a slower onset of action and a longer half-life, making it less suitable for the rapid relief required in acute renal colic compared to Diclofenac. **Clinical Pearls for NEET-PG:** * **Route of Administration:** Intramuscular (IM) or intravenous (IV) Diclofenac is preferred for rapid onset, though rectal suppositories are also highly effective. * **Second-line:** If NSAIDs are contraindicated (e.g., renal failure, peptic ulcer disease) or ineffective, opioids (like Morphine or Pethidine) are used. * **Medical Expulsive Therapy (MET):** For stones <10mm, **Tamsulosin** (Alpha-1 blocker) is the drug of choice to facilitate stone passage.

Question 1

A 25-year-old male presented with painless testicular swelling and a history of fever and weight loss. All the following investigations are indicated in this patient, except:

Accepted Answer

Trans-scrotal biopsy

Answer

USG scrotum

Answer

CT abdomen and pelvis

Answer

Chest x-ray

Question 2

In varicocele surgery, by which vein is venous drainage performed?

Accepted Answer

Cremasteric vein

Answer

Inferior Vena Cava (IVC)

Answer

Aorta (Aorta)

Answer

Superior epigastric vein

Question 3

What is the treatment of choice for a patient with acquired vesicoureteric reflux presenting with a urinary tract infection?

Accepted Answer

Cotrimoxazole

Answer

Bilateral reimplantation of ureter

Answer

Injection of collagen into the ureter

Answer

Endoscopic resection of the ureter

Question 4

What is the most common tumor in an undescended testis?

Accepted Answer

Seminoma

Answer

Teratoma

Answer

Both of the above

Answer

None of the above

Question 5

Features of carcinoma penis include all except?

Accepted Answer

Hypospadias is a premalignant lesion

Answer

Metastasize to inguinal lymph nodes

Answer

Surgery is the treatment of choice

Answer

Circumcision provides protection

Question 6

Which testicular tumor produces feminizing symptoms?

Accepted Answer

Sertoli cell tumor

Answer

Seminoma

Answer

Teratoma

Answer

Leydig cell tumor

Question 7

A patient presented with a hard swelling in the right testis. All are true statements regarding the management of this condition EXCEPT:

Accepted Answer

Trans-scrotal biopsy is needed

Answer

Inguinal exploration is done

Answer

High inguinal exploration should be done

Answer

Scrotal ultrasonography is done

Question 8

PSA is measured in which units?

Accepted Answer

ng/ml

Answer

gm/ml

Answer

mg/ml

Answer

mcg/ml

Question 9

A 49-year-old male with a 35-pack-year smoking history presents with a painless left scrotal mass. Examination revealed microscopic hematuria and normal alpha-fetoprotein (AFP) and lactate dehydrogenase (LDH) levels. What is the most probable cause of the scrotal mass?

Accepted Answer

Renal cell carcinoma

Answer

Seminoma

Answer

Epididymitis

Answer

Carcinoma of the lung

Question 10

What is the drug of choice for renal colic?

Accepted Answer

Diclofenac

Answer

Methadone

Answer

Pentazocine

Answer

Piroxicam

Urology — MCQs

Urology — MCQs

On this page

Practice by Chapter

Want unlimited practice?