College of American Pathologists

2011 — May Case of the Month

Posted May 27, 2011


CAP Foundation April 2011 Online Case of the Month

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A 17-year-old woman presented with a 5 month history of progressive abdominal fullness and pain and was found to have a 20.0 cm left ovarian mass. Serum a-fetoprotein and ß-HCG were within normal limits. A left salpingo-oophorectomy specimen with a 20.0 cm smooth-surfaced mass replacing the ovary was received; the fallopian tube was unremarkable. On cut section, the ovarian mass was solid and cystic with the cysts containing seromucinous and bloody fluid and the solid areas being soft and yellow-tan.

The master list with the correct answer

  • Adult granulosa cell tumor
  • Clear cell carcinoma
  • Juvenile granulosa cell tumor
  • Small cell carcinoma, hypercalcemic type
  • Yolk sac tumor

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  • Appropriate diagnosis
  • Critique
  • References

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