BACKGROUND The mediastinal ectopic thyroid is very rare, accounting for less than 1% of all cases of ectopic thyroid tissue. The differential diagnoses with other diseases such as lymphomas, thymic tumors and dermoid cysts is mandatory, in fact each one, needs different management and treatment. CASE PRESENTATION Here, we discuss a rare case of mediastinal ectopic thyroid presenting with a pa...

Ectopic cervical thymoma is rare and is often misdiagnosed as a thyroid tumor or other malignancy. Ectopic thymic tissue can be found along the entire thymic descent path during embryogenesis. However, a thymoma arising from such ectopic thymic tissue is extremely rare. Herein we report a patient with ectopic cervical thymoma and myasthenia gravis (MG) and discuss the management.

AIM To present a rare case of lingual thyroid detected using a hybrid of single photon emission computed tomography and standard computed tomography in a young woman with hypothyroidism. MATERIALS AND METHODS A 29-year-old woman was screened for autoimmune thyroid disorders in early pregnancy, and found to have subclinical hypothyroidism. No thyroid tissue was found in the anterior neck upon ...

Chemokines and their corresponding receptors are crucial for the recruitment of lymphocytes into the lymphoid organs and for its organization acting in a multistep process. Tissues affected by autoimmune disease often contain ectopic lymphoid follicles which, in the case of autoimmune thyroid disorders, are highly active and specific for thyroid Ags although its pathogenic role remains unclear....

The thyroglossal Duct (TD) cyst results from a failure in obliterating the embryogenic duct produced during thyroid migration. A cyst may develop from the secretory residual epithelium. Ectopic thyroid tissue neoplasias are rare, and even rarer when associated with the TD. It has been reported that over 7% of adults have some remains of the TD1 and over 62% of them may have some ectopic thyroid...

• The authors have no financial conflicts of interest. which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. To the Editor: Lingual thyroid is a rare embryological anomaly caused by failure of the gland to descend from the foramen cecum to its normal site in the pre-laryngeal area. Its precise pathogenesis is u...

The concomitant appearance of a sublingual thyroid and primary hyperparathyroidism due to parathyroid mediastinal adenoma is not common. This co-occurrence can lead to a misdiagnosis by morphological imaging methods alone. This case emphasizes the role of 99mTc-MIBI scintigraphy in the detection of parathyroid ectopic adenoma in a patient with an ectopic thyroid gland. This more accurate locati...

OBJECTIVE To determine the utility of ultrasonography as a sole diagnostic study in the preoperative preparation of patients with presumed thyroglossal duct cysts. DESIGN Retrospective chart review. SETTINGS Children's Memorial Hospital, Chicago, Ill. PATIENTS Forty-five pediatric patients with midline masses. MAIN OUTCOME MEASURE Accuracy in the determination of a normally positioned t...