All of the following statements regarding micropapillary variant of urothelial carcinoma of urinary bladder are true, EXCEPT

Correct Answer: A

Rationale: Micropapillary urothelial carcinoma lacks strong female predominance slight male bias, aggressive in both false. 5-year survival ~50% true, poor prognosis. Surgery (cystectomy) is best correct. 0.7-2.2% prevalence accurate rarity. No female dominance distinguishes the error, key to its epidemiology, unlike survival, treatment, or frequency truths.

Correct Answer: D

Rationale: MIBG scintigraphy is the gold standard for pheochromocytoma targets catecholamine uptake, specific for functionality. MRI/CECT show anatomy less functional. FDG PET detects metabolism non-specific, malignant focus. MIBG's specificity distinguishes it, critical for localizing active tumors, unlike structural or metabolic imaging.

Correct Answer: C

Rationale: Fetal uropathy typically denotes posterior urethral valve (PUV) obstructs fetal bladder outflow, causing hydronephrosis. Renal agenesis is lethal broader term. VUR is reflux, not primary obstruction secondary. Exstrophy is structural distinct. PUV's obstructive impact distinguishes it, key to fetal urinary pathology, unlike agenesis, reflux, or malformation.

Correct Answer: C

Rationale: Serum PSA strongly predicts BPH progression reflects prostate volume, risk of acute retention/surgery. Age correlates less specific. Flow rates indicate obstruction variable progression link. Symptom score (IPSS) tracks bother not progression strength. PSA's predictive power distinguishes it, critical for risk stratification, unlike age, flow, or symptom metrics.

Correct Answer: A

Rationale: The efferent arteriole carries blood from the glomerulus to peritubular capillaries/vasa recta, not those vessels or interlobular vein (later drainage). This distinguishes glomerular outflow, vital for filtration dynamics, contrasting with downstream vessels.