Senior oncologist explains rare ovarian tumor struma ovarii and its link to hyperthyroidism

Struma ovarii, a rare ovarian tumor made of thyroid tissue, can sometimes cause hyperthyroidism. This benign tumor, occurring in 0.5% of ovarian tumors, can lead to symptoms like rapid heart rate and weight loss if it secretes thyroid hormones. Diagnosis involves imaging and hormone level tests. Treatment is primarily surgical, with options varying by age and cancer suspicion. While usually cured by surgery, recurrence is possible, necessitating long-term follow-up.