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Humoral hypercalcemia associated with a dysgerminoma
S C Giebel1, C R Stanhope, G D Malkasian
1Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, MN 55905.
Mayo Clinic Proceedings
|October 11, 1992
Summary
A rare ovarian dysgerminoma in a teen girl caused hypercalcemia and weight loss. Treatment included surgery and irradiation, leading to a 7-year disease-free outcome.
Area of Science:
- Gynecologic Oncology
- Reproductive Endocrinology
- Pediatric Oncology
Background:
- Dysgerminoma is a rare malignant germ cell tumor of the ovary.
- Ovarian germ cell tumors can secrete human chorionic gonadotropin (hCG).
- Hypercalcemia is a potential paraneoplastic complication of certain tumors.
Observation:
- A 16-year-old female presented with significant weight loss, hypercalcemia, and a pelvic mass.
- Preoperative beta-subunit of human chorionic gonadotropin (β-hCG) level was elevated at 147 IU/liter.
- Abdominal exploration revealed a stage III dysgerminoma.
Findings:
- The dysgerminoma tissue showed positive immunostaining for hCG in syncytial giant cells.
- Postoperative β-hCG levels rapidly decreased after surgical resection (total abdominal hysterectomy and bilateral salpingo-oophorectomy).
- Whole-abdomen irradiation was administered 4 weeks postoperatively.
Implications:
- This case highlights the association between ovarian dysgerminoma and hCG production, leading to paraneoplastic hypercalcemia.
- Multimodal treatment including surgery and radiation achieved a favorable long-term outcome.
- Prompt diagnosis and management are crucial for improving survival rates in young patients with ovarian dysgerminoma.