Pathology · USMLE Step 1

USMLE Pathology: Reproductive System

Gynecologic and testicular tumor classification, cervical dysplasia grading, and placental pathology, one finding per card. Original cards testing the underlying concepts.

35 cards · basic cards · AI-written, checked twice. Edit anything.

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Which two HPV genotypes carry the highest risk for cervical cancer?
HPV 16 and 18.
Which two HPV genotypes most commonly cause condyloma acuminatum (genital warts)?
HPV 6 and 11.
What cytologic finding on Pap smear is the hallmark of HPV-infected squamous cells?
Koilocytes (cells with perinuclear halos and irregular, raisinoid nuclei).
In CIN I, what fraction of the epithelial thickness shows dysplastic cells?
The lower third of the epithelium.
In CIN II, what fraction of the epithelial thickness shows dysplastic cells?
The lower two-thirds of the epithelium.
In CIN III, what fraction of the epithelial thickness shows dysplastic cells?
The full thickness of the epithelium (carcinoma in situ).
What is the most common histologic subtype of invasive cervical carcinoma?
Squamous cell carcinoma.
Which HPV oncoprotein degrades the p53 tumor suppressor?
E6.
Which HPV oncoprotein inactivates the Rb tumor suppressor?
E7.
Where on the cervix does dysplasia most commonly arise?
The transformation zone (squamocolumnar junction).
What screening test detects cervical dysplasia before it becomes invasive cancer?
The Pap smear (cervical cytology).
What is the most common category of malignant ovarian tumor?
Epithelial tumors, most often serous cystadenocarcinoma.
What tumor marker is used to monitor epithelial ovarian carcinoma?
CA-125.
What is the most common benign germ cell tumor of the ovary?
Mature cystic teratoma (dermoid cyst).
What malignant ovarian germ cell tumor is histologically identical to testicular seminoma?
Dysgerminoma.

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