Illness script
Ovarian Tumors (Benign vs. Malignant)
Adnexal mass; benign in young women, but malignant risk rises with age, size, and complexity.
This illness script for Ovarian Tumors (Benign vs. Malignant) covers the classic presentation, who it affects, how you work it up, the mechanism, and first-line treatment—written for USMLE Step 1 and clerkship clinical reasoning.
Updated Jul 18, 2026All scripts
01
Who it affects
- Benign: reproductive-age women (20s-40s)
- Malignant epithelial: postmenopausal women (>50)
- Risk factors for malignancy: BRCA1/2, Lynch, nulliparity, early menarche/late menopause
- Protective: OCPs, multiparity, breastfeeding, tubal ligation
- Germ cell tumors: adolescents/young women
02
Diagnostics & workup
- Often asymptomatic; bloating, early satiety, pelvic pressure, mass
- Transvaginal ultrasound: first-line imaging
- Benign features: simple, unilocular, cystic, thin-walled, no flow
- Malignant features: solid components, septations, ascites, papillary projections, high Doppler flow
- CA-125 elevated (epithelial); useful in postmenopausal women
- Tumor markers: AFP, hCG, LDH (germ cell); inhibin (granulosa)
- Gold standard: surgical excision with histopathology
03
Pathophysiology
- Epithelial: derived from surface epithelium; serous, mucinous, endometrioid
- Germ cell: from oocytes (teratoma, dysgerminoma, yolk sac)
- Sex cord-stromal: granulosa (estrogen), Sertoli-Leydig (androgen)
- Malignant tumors invade locally, spread transcoelomically across peritoneum
- Incessant ovulation and BRCA mutations drive epithelial carcinogenesis
04
Treatment
- Benign simple cysts: observation or cystectomy if symptomatic
- Suspicious/postmenopausal mass: refer to gyn-oncology
- Surgical staging: TAH-BSO, omentectomy, peritoneal washings, lymph nodes
- Adjuvant platinum-based chemo (carboplatin + paclitaxel) for advanced epithelial
- Germ cell tumors: fertility-sparing surgery + BEP chemo
- Screening not recommended in average-risk women
Keep reading
Full library- Ovarian TorsionSudden severe unilateral pelvic pain with nausea/vomiting in a woman with an adnexal mass.
- Ovarian Tumors (Benign vs. Malignant)Adnexal mass presenting with pelvic pain, bloating, or incidental finding; malignancy suggested by age, ascites, and elevated CA-125.
Educational use only. This illness script is a study framework, not medical advice. Confirm decisions with current guidelines and your clinical supervisors.