Mixed Medullary-Follicular Carcinoma of the Thyroid

Introduction. Mixed medullary-follicular thyroid carcinoma is an uncommon tumor that consists of both follicular and parafollicular cells. Case. We report a 43-year-old woman with a palpable mass in the right side of the neck. Fine needle aspiration suggested a diagnosis of high grade anaplastic car...

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Bibliographic Details
Main Authors: Maasumeh Tohidi, Gholamreza Pourbehi, Mohammad Bahmanyar, Seyed Sajjad Eghbali, Mohammadreza Kalantar Hormozi, Iraj Nabipour
Format: Article
Language:English
Published: Hindawi Limited 2013-01-01
Series:Case Reports in Endocrinology
Online Access:http://dx.doi.org/10.1155/2013/571692
Description
Summary:Introduction. Mixed medullary-follicular thyroid carcinoma is an uncommon tumor that consists of both follicular and parafollicular cells. Case. We report a 43-year-old woman with a palpable mass in the right side of the neck. Fine needle aspiration suggested a diagnosis of high grade anaplastic carcinoma that has been associated with papillary features. Total thyroidectomy was done in which histopathological examination showed diagnosis of medullary carcinoma. Immunohistochemical staining was positive for chromogranin, calcitonin, and thyroglobulin in tumoral cells. Conclusion. Mixed medullary-follicular thyroid carcinoma is a rare tumor. Diagnosis of these tumors with fine needle aspiration is very difficult and may lead to misdiagnosis. It is necessary to correlate the cytological finding with serum calcitonin and thyroglobulin. Also immunostaining for calcitonin and thyroglobulin confirms diagnosis.
ISSN:2090-6501
2090-651X