Urology Practice Questions

Q: Which of the following is NOT a predisposing factor for penile carcinoma?

Circumcision. **Explanation:** The correct answer is **Circumcision**. In fact, neonatal circumcision is a well-documented **protective factor** against penile carcinoma. It prevents the accumulation of smegma (a byproduct of desquamated epithelial cells and bacteria) under the prepuce, which acts as a chronic chemical irritant and carcinogen. It also reduces the risk of phimosis and HPV infection, both of which are major risk factors. **Analysis of Options:** * **Paget’s Disease (Extramammary):** This is a form of intraepithelial neoplasia (CIS). If it involves the penile or scrotal skin, it carries a significant risk of underlying or subsequent invasive adenocarcinoma. * **Genital Warts (HPV):** Human Papillomavirus (specifically types 16 and 18) is a major predisposing factor. HPV DNA is found in approximately 40-50% of penile cancer cases. * **Leukoplakia:** This is a premalignant condition characterized by white patches on the glans or meatus. It is often associated with chronic irritation and can progress to squamous cell carcinoma (SCC). **High-Yield Clinical Pearls for NEET-PG:** * **Most Common Histology:** Squamous Cell Carcinoma (SCC) is the most common type (>95%). * **Phimosis:** Present in 75-90% of patients with penile cancer; it is the strongest clinical predisposing factor. * **Premalignant Lesions (CIS):** * *Bowen’s Disease:* Involves the shaft (leukoplakia-like). * *Erythroplasia of Queyrat:* Involves the glans or prepuce (velvety red lesion). * **Lymphatic Spread:** Penile cancer primarily spreads to the **Inguinal lymph nodes** (sentinel node: Node of Cloquet).

Q: Indications of circumcision are all except:

Peyronie's disease. **Explanation:** Circumcision is the surgical removal of the foreskin (prepuce) of the penis. To answer this question, one must distinguish between conditions involving the prepuce and those involving the penile shaft. **Why Peyronie’s Disease is the Correct Answer:** Peyronie’s disease is a connective tissue disorder characterized by the formation of fibrous collagen plaques within the **tunica albuginea** of the penile shaft. This leads to penile curvature, pain, and erectile dysfunction. Since the pathology is deep within the shaft tissues and not the foreskin, circumcision is not a treatment or indication for this condition. Management typically involves collagenase injections, traction therapy, or surgical plication/grafting. **Analysis of Incorrect Options:** * **Balanoposthitis:** This is inflammation of both the glans penis (balanitis) and the prepuce (posthitis). Recurrent episodes lead to scarring and secondary phimosis, making circumcision the definitive treatment. * **Religious Beliefs:** This is the most common non-medical indication globally (e.g., in Jewish and Islamic traditions). In the context of exams, "social/religious" reasons are considered valid elective indications. * **Paraphimosis:** A surgical emergency where a retracted foreskin becomes trapped behind the glans, causing edema and vascular compromise. While initial management is manual reduction, circumcision is indicated electively to prevent recurrence. **High-Yield Clinical Pearls for NEET-PG:** * **Absolute Medical Indication:** Pathological Phimosis (often due to Balanitis Xerotica Obliterans - BXO). * **Contraindications:** Hypospadias (the foreskin is needed for future reconstructive flaps) and acute local infection. * **Protective Benefit:** Circumcision is associated with a decreased risk of Penile Carcinoma and reduced transmission of HIV and HPV. * **Complication:** The most common acute complication is hemorrhage.

Q: The prognosis of rhabdomyosarcoma is likely to be poor if the site of the tumour is?

Extremity. **Explanation:** The prognosis of Rhabdomyosarcoma (RMS) is primarily determined by the **anatomic site of origin**, which is a key component of the clinical grouping and staging system. **Why "Extremity" is the correct answer:** Tumors arising in the **extremities** are associated with a significantly poorer prognosis. This is because extremity RMS is frequently of the **Alveolar subtype** (associated with FOXO1 gene translocations), which is more aggressive, has a higher propensity for early lymphatic and hematogenous metastasis, and often presents with larger tumor volumes compared to other sites. **Analysis of Incorrect Options:** * **Orbit:** This is considered a **favorable site**. Orbital RMS has an excellent prognosis (survival >90%) as it presents early due to visible proptosis and rarely spreads to regional lymph nodes. * **Paratesticular:** This is a **favorable site**. These tumors are usually of the Embryonal subtype, are easily detectable as a scrotal mass, and respond well to multimodal therapy. * **Urinary Bladder:** While the bladder/prostate region is considered a "non-favorable" site compared to the orbit, it still generally carries a better prognosis than the extremities. Bladder RMS often presents as "Sarcoma Botryoides" (grape-like clusters), which has a relatively good surgical outcome. **High-Yield Clinical Pearls for NEET-PG:** * **Favorable Sites:** Orbit, Non-parameningeal Head & Neck, Paratesticular, and Vagina/Uterus. * **Unfavorable Sites:** Extremities, Parameningeal (skull base), Bladder, Prostate, and Trunk. * **Most Common Subtype:** Embryonal (better prognosis; common in younger children). * **Worst Prognosis Subtype:** Alveolar (common in adolescents; extremity involvement). * **Genetic Association:** Alveolar RMS is linked to **t(2;13)** or **t(1;13)** translocations.

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.

Question 1

Which of the following is NOT a predisposing factor for penile carcinoma?

Accepted Answer

Circumcision

Answer

Paget's disease

Answer

Genital warts

Answer

Leukoplakia

Question 2

Indications of circumcision are all except:

Accepted Answer

Peyronie's disease

Answer

Balanoposthitis

Answer

Religious beliefs

Answer

Paraphimosis

Question 3

The prognosis of rhabdomyosarcoma is likely to be poor if the site of the tumour is?

Accepted Answer

Extremity

Answer

Orbit

Answer

Paratesticular

Answer

Urinary bladder

Question 4

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 5

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 6

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 7

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 8

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 9

Which testicular tumor produces feminizing symptoms?

Accepted Answer

Sertoli cell tumor

Answer

Seminoma

Answer

Teratoma

Answer

Leydig cell tumor

Question 10

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

Urology — MCQs

Urology — MCQs

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