| CASE REPORT |
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| Year : 2010 | Volume
: 53
| Issue : 2 | Page : 305-307 |
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Ectopic cervical thymoma mimicking as papillary thyroid carcinoma: A diagnostic dilemma
Abhijit Thakur1, Frederic Sebag1, Catherine De Micco2, Eveline Slotema1, Francois Jean Henry1
1 Department of Endocrine Surgery, University Hospital La Timone, 264, Rue Saint-Pierre, 13385 Marseille, France
2 Department of Pathology, Hospital Nord, Marseille, France
Correspondence Address:
Abhijit Thakur
Department of Endocrine Surgery, University Hospital La Timone, 264, Rue Saint-Pierre, 13385 Marseille
France
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0377-4929.64294
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Ectopic cervical thymomas are often confused with thyroid or parathyroid swellings due to their anatomical positioning. Predominant epithelial thymoma can be misdiagnosed as papillary thyroid carcinoma on fine needle aspiration and lymph node metastasis of epithelial tumor on frozen section. Predominantly lymphocytic thymomas have often been misinterpreted as Hashimoto's thyroiditis or malignant lymphoma, either by fine needle aspiration or on frozen section analysis. If cytology is doubtful and is not correlating with clinical, anatomical and surgical findings; immunohistochemistry is a very important tool in such cases to give final answer. Thyroid cell specific proteins such as thyroglobulin, thyroid transcription factor-1, thyroperoxidase and dipeptidyl aminopeptidase-4, neuroendocrine markers chromogranin, calcitonin and parathyroid hormone could be used to rule out thyroid or parathyroid origin. We present such rare case of ectopic cervical thymoma mimicking as papillary thyroid carcinoma. |
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