Embryology USMLE Step 1 Practice Question
A 54-year-old male presents for routine health screening with vital signs: BP 128/82 mmHg, HR 76/min, RR 14/min, temperature 37.0°C. PSA level is elevated at 6.8 ng/mL; digital rectal examination reveals a firm, nodular prostate. Transrectal ultrasound shows a hypoechoic lesion suspicious for malignancy. He denies urinary symptoms or hematuria. He takes lisinopril for hypertension. Which embryonic structure gives rise to the organ being evaluated for carcinoma?
Answer choices
- AProcessus vaginalis
- BTestis cords
- CGenital tubercle
- DUrogenital sinusCorrect answer
- ETunica albuginea
- FMesonephric (Wolffian) duct
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