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Ectopic thyroid gland refers to the presence of thyroid tissue outside the normal position of the neck, which is relatively rare in clinical practice, and ectopic and cancer change is rare. This article focuses on a patient with "supraclavicular mass" as the first symptom admitted to the Thyroid Surgery Department of Binzhou People’s Hospital, After the operation, the pathology confirmed ectopic thyroid cancer with lymph node metastasis, and the imaging showed lung metastasis. This article summarizes the case data.
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Objective To explore the clinical features, diagnosis and treatment of ectopic thyroid gland and to improve the management of ectopic thyroid. Methods The clinical data of 15 cases of ectopic thyroid in our hospital and the literatures were analyzed. The clinical features of ectopic thyroid gland, its diagnosis and the treatment were summarized. Results Of the 15 cases, 13 cases underwent operation. Among them, 9 cases showed symptom relief and their thyroid gland function resumed normal with no reoccurrence, 3 cases were complicated by temporary hypothyroidism and 1 case was misdiagnosed and mistreated, resulting in permanent hypothyroidism and lifetime thyroid hormone replacement. Conclusions Ectopic thyroid gland is a rare disease which was frequently misdiagnosed and mistreated. Improvement of related examination is essential in reducing misdiagnosis and mistreatment.
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BACKGROUND: Ectopic thyroid gland is relatively rare condition and a developmental anomaly characterized by an aggregated of thyroid tissue in the midline anywhere from the base of the tongue to the mediastinum. The role of ectopic thyroid in the pathogenesis of non-goitrous sporadic cretinism and primary hypothyroidism has been emphasized. 19 cases of ectopic thyroid for 12 years was presented with Tc-pertechnetate or radioactive iodine, which were diagnosed by scintigraphy. METHODS: We wish to report these 19 cases and 12 cases of brief review of literatures on the incidence, etiology and development, symptomatology, diagnosis and treatment of ectopic thyroid gland was done. RESULTS: The most frequent incidental age was between the age 1 year and 29 years. And the frequency of ectopic thyroid was about 7 times more common in female(27 cases) than in male(4 cases). The location of ectopic thyroid were found to be lingual in 18 cases, sublingual in 9 cases, prelaryngeal in 1 case, and combine with lingual and sublingual in 3 cases. In chief complaints, palpable mass was most common and there were foreign body sensation on throat, dysphagia, dysphonia, and hoarseness. In 15 cases of hypothyroidism, l2 cases were taken thyroid hormone replacement therapy, 1 case was removed ectopic thyroid gland. In 2 of 10 cases of euthyroidism, replacement of thyroid hormone were done and 2 cases were removed ectopic thyroid gland, in 6 cases of unknown thyroid function, 1 case was removed ectopic thyroid gland and 131I therapy was done in 1 case, and others were observed with following up thyroid function test. CONCLUSION: These results suggest that the long terms thyroid function test, thyroglossal duct eyst and malignant change in ectopic thyroid tissue when finding the ectopic thyroid in thyroid scintigraphy were recommended highly.