Ectopic Thyroid Tissue in the Mediastinum Characterized by Histology and Functional Imaging with I-123 SPECT/CT
Ectopic thyroid tissue is a rare entity and when discovered it is typically along the pathway of embryologic migration of the thyroid. We present a case of incidental finding of ectopic thyroid tissue within mediastinum in a 61-year-old female patient with a history of total thyroidectomy for thyroi...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Case Reports in Radiology |
| Online Access: | http://dx.doi.org/10.1155/2017/9084207 |
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| author | Jed Hummel Jason Wachsmann Kelley Carrick Orhan K. Oz Dana Mathews Fangyu Peng |
| author_facet | Jed Hummel Jason Wachsmann Kelley Carrick Orhan K. Oz Dana Mathews Fangyu Peng |
| author_sort | Jed Hummel |
| collection | DOAJ |
| description | Ectopic thyroid tissue is a rare entity and when discovered it is typically along the pathway of embryologic migration of the thyroid. We present a case of incidental finding of ectopic thyroid tissue within mediastinum in a 61-year-old female patient with a history of total thyroidectomy for thyroiditis and nodules. The patient presented to emergency room with cough and right chest pain and underwent a chest computed tomographic angiogram (CTA) to exclude pulmonary embolism as part of chest pain workup. One right paratracheal mediastinal soft tissue nodule was visualized on the images of CTA. This right paratracheal soft tissue mass was found to be ectopic benign thyroid tissue by histological analysis of the biopsied tissue samples. The function of this ectopic thyroid tissue was characterized by I-123 radioiodine uptake and single photon emission computed tomography/computed tomography (SPECT/CT) imaging. This case illustrates that ectopic thyroid tissue should be included for differential diagnosis of a hyperdense soft tissue mass located within mediastinum. I-123 SPECT/CT is useful for guiding tissue biopsy of ectopic thyroid tissue distant from orthotopic thyroid gland and functional and anatomic characterization of mediastinal ectopic thyroid tissue for surgical resection when it is medically necessary. |
| format | Article |
| id | doaj-art-1f29d82803074be6be13d992dfb72ab2 |
| institution | OA Journals |
| issn | 2090-6862 2090-6870 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Case Reports in Radiology |
| spelling | doaj-art-1f29d82803074be6be13d992dfb72ab22025-08-20T02:04:44ZengWileyCase Reports in Radiology2090-68622090-68702017-01-01201710.1155/2017/90842079084207Ectopic Thyroid Tissue in the Mediastinum Characterized by Histology and Functional Imaging with I-123 SPECT/CTJed Hummel0Jason Wachsmann1Kelley Carrick2Orhan K. Oz3Dana Mathews4Fangyu Peng5Department of Radiology, UT Southwestern Medical Center, Dallas, TX, USADepartment of Radiology, UT Southwestern Medical Center, Dallas, TX, USADepartment of Pathology, UT Southwestern Medical Center, Dallas, TX, USADepartment of Radiology, UT Southwestern Medical Center, Dallas, TX, USADepartment of Radiology, UT Southwestern Medical Center, Dallas, TX, USADepartment of Radiology, UT Southwestern Medical Center, Dallas, TX, USAEctopic thyroid tissue is a rare entity and when discovered it is typically along the pathway of embryologic migration of the thyroid. We present a case of incidental finding of ectopic thyroid tissue within mediastinum in a 61-year-old female patient with a history of total thyroidectomy for thyroiditis and nodules. The patient presented to emergency room with cough and right chest pain and underwent a chest computed tomographic angiogram (CTA) to exclude pulmonary embolism as part of chest pain workup. One right paratracheal mediastinal soft tissue nodule was visualized on the images of CTA. This right paratracheal soft tissue mass was found to be ectopic benign thyroid tissue by histological analysis of the biopsied tissue samples. The function of this ectopic thyroid tissue was characterized by I-123 radioiodine uptake and single photon emission computed tomography/computed tomography (SPECT/CT) imaging. This case illustrates that ectopic thyroid tissue should be included for differential diagnosis of a hyperdense soft tissue mass located within mediastinum. I-123 SPECT/CT is useful for guiding tissue biopsy of ectopic thyroid tissue distant from orthotopic thyroid gland and functional and anatomic characterization of mediastinal ectopic thyroid tissue for surgical resection when it is medically necessary.http://dx.doi.org/10.1155/2017/9084207 |
| spellingShingle | Jed Hummel Jason Wachsmann Kelley Carrick Orhan K. Oz Dana Mathews Fangyu Peng Ectopic Thyroid Tissue in the Mediastinum Characterized by Histology and Functional Imaging with I-123 SPECT/CT Case Reports in Radiology |
| title | Ectopic Thyroid Tissue in the Mediastinum Characterized by Histology and Functional Imaging with I-123 SPECT/CT |
| title_full | Ectopic Thyroid Tissue in the Mediastinum Characterized by Histology and Functional Imaging with I-123 SPECT/CT |
| title_fullStr | Ectopic Thyroid Tissue in the Mediastinum Characterized by Histology and Functional Imaging with I-123 SPECT/CT |
| title_full_unstemmed | Ectopic Thyroid Tissue in the Mediastinum Characterized by Histology and Functional Imaging with I-123 SPECT/CT |
| title_short | Ectopic Thyroid Tissue in the Mediastinum Characterized by Histology and Functional Imaging with I-123 SPECT/CT |
| title_sort | ectopic thyroid tissue in the mediastinum characterized by histology and functional imaging with i 123 spect ct |
| url | http://dx.doi.org/10.1155/2017/9084207 |
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