Abstract
Background: As the first endocrine gland to form during embryogenesis, Thyroid develops in the 7th embryonic week through migration from foramen cecum to its adult position, anterolatÂeral of 2nd and 4th tracheal cartilages. Ectopic Thyroid can be found anywhere along the migraÂtion path with or without co-existence of a normally located Thyroid. Ectopic thyroid glands at two different locations are so rare that only about 24 cases of dual ectopia have been reported. We present the first case of dual ectopic submandibular multinudolar goiter. Case Report: We describe a 35-year-old housewife who consulted us complaining two huge and gradually-growÂing swellings in right and left upper neck regions. In physical examination, two great well-deÂfined masses, one in right and one in left submandibular regions, were seen which had firm forÂmidability with no mobility, tenderness or evidence of inflammation. Imaging and fine-needle aspiration confirmed the diagnosis of dual ectopic submandibular multinodular goiter in our patient as the first case of occurrence. Conclusion: Finally, we recommend ectopic thyroid to be considered in the diagnosis of laterally located and submandibular neck masses especially in the absence of normally located thyroid. Additionally, we confirmed the idea that not all the laterally-located ectopic thyroids are malignant.[GMJ.2016;5(2):98-102]
Highlights
As the first endocrine gland to form during embryogenesis, Thyroid develops in the 7th embryonic week through migration from foramen cecum to its adult position, anterolateral of 2nd and 4th tracheal cartilages [1]
Ectopic thyroid glands at two different locations are so rare that only about 24 cases of dual ectopia have been reported [3]
We present the first case of dual ectopic submandibular MNG
Summary
As the first endocrine gland to form during embryogenesis, Thyroid develops in the 7th embryonic week through migration from foramen cecum to its adult position, anterolateral of 2nd and 4th tracheal cartilages [1]. Ectopic thyroid glands at two different locations are so rare that only about 24 cases of dual ectopia have been reported [3]. Two great well-defined masses; one in right and the other in left submandibular regions, were seen which had firm formidability with no mobility, tenderness or evidence of inflammation (Figure-1). Past medical history of the patient revealed no evident disease or hospitalization except one cesarean section surgery. Gastrointestinal cancer in her father was the only positive family history. CT scan showed a huge lobulated mass with defined margin sized 130×60 millimeters with severe heterogeneous enhancement (Figure-2). Ultrasound evaluation revealed a double-lobe heterogeneous mass sized 130×60 millimeters with pressure effect on regional elements.
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