Struma ovarii is a rare monodermal variant of ovarian teratoma that contains at least 50% thyroid tissue. Less than 8% of struma ovarii cases present with clinical and biochemical evidence of thyrotoxicosis due to ectopic production of thyroid hormone and only 5% undergo malignant transformation into a papillary thyroid carcinoma. Only isolated cases of hormonally active papillary thyroid carci...

Ectopic thyroid tissue with thyroid gland in its normal location is an extremely rare phenomenon. We present a case of a 38-year-old woman who was referred to our hospital with symptoms of hypothyroidism. Thyroid hormone measurement revealed clinical hypothyroidism with elevated anti-thyroid antibodies, neck ultrasonography showed a small tissue with the characteristic of Hashimoto thyroiditis,...

This case report is about a patient with an oropharyngeal mass presenting to our hospital for biopsy under general anesthesia. Because of the great risk of failure of mask ventilation and direct laryngoscopy, an awake fiberoptic intubation was performed successfully. The biopsy revealed a thyroid tissue leading to the diagnosis of ectopic lingual thyroid.