Ovarian surface epithelial tumors Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 56-year-old woman comes to the clinic due to progressive pelvic discomfort over the past few months. Medical history is noncontributory, and she is in good health. The patient does not have a family history of malignancy, history of sexually transmitted disease, urinary symptoms, or bleeding. Last menstrual cycle was 5 years ago, and the last Pap smear 6 months ago was normal. Temperature is 37 °C (98.6°F), pulse is 84/min, and blood pressure is 125/85 mmHg. Physical examination is within normal limits, other than a right adnexal mass upon palpation. Ultrasonography shows a solid right adnexal mass. The patient subsequently undergoes laparoscopy with excision of the mass. The specimen and histopathological analysis are shown below:

A high-magnification micrograph shows numerous densely packed, irregularly shaped nuclei within a pink, cellular tissue mass, indicative of neoplastic growth.
Reproduced from: Wikimedia Commons

A close-up view of a bisected mass, showing a pale yellow, lobulated surface with some areas of darker yellow and small cysts.
Reproduced from: Wikimedia Commons

This patient’s lesion most likely arose from which of the following structures of the ovary?  
An illustration of an ovary with labeled parts. A points to the cortex, B to a primary follicle with oocyte, C to the medulla, and D to the blood vessels.

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