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The Smallest Reported Malignant Struma Ovarii: A Case Report.
Nobuko Yasutake1, Hirotsugu Noguchi2, Yuta Ibayashi3
1Department of Gynecology and Obstetrics, Tagawa Municipal Hospital, Fukuoka, Japan.
Case Reports in Oncology
|November 29, 2018
Summary
Malignant struma ovarii, a rare ovarian tumor, was diagnosed in a 66-year-old woman. This case highlights the need for individualized treatment of this uncommon papillary thyroid carcinoma.
Area of Science:
- Gynecologic Oncology
- Endocrinology
- Pathology
Background:
- Malignant struma ovarii is a rare ovarian neoplasm, often asymptomatic and difficult to diagnose preoperatively.
- No established diagnostic or therapeutic guidelines exist for malignant struma ovarii.
- This report details a rare case of papillary thyroid carcinoma arising in a struma ovarii.
Observation:
- A 66-year-old asymptomatic female presented with a well-defined enhancing mass on computed tomography.
- Surgical management included total abdominal hysterectomy, bilateral salpingo-oophorectomy, and partial omentectomy.
- Histopathology confirmed a 2.5-cm papillary thyroid carcinoma within the struma ovarii, classified as stage IA disease.
Findings:
- The smallest reported malignant struma ovarii was documented in this case.
- Post-operative thyroid scan showed normal findings.
- The patient remained disease-free and in good condition at 3-month follow-up.
Implications:
- The rarity of malignant struma ovarii necessitates personalized treatment strategies.
- Treatment decisions should integrate pathological and clinical parameters due to limited prognostic factors.
- Further research is needed to establish diagnostic and therapeutic standards for this rare condition.
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