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Oncocytic variant of medullary thyroid carcinoma: a rare case of sporadic multifocal and bilateral RET wild-type neoplasm with revision of the literature
oleh: Gian Luca Rampioni Vinciguerra, Niccolò Noccioli, Claudia Cippitelli, Angelo Minucci, Ettore Capoluongo, Armando Bartolazzi
Format: | Article |
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Diterbitkan: | SAGE Publishing 2016-12-01 |
Deskripsi
Oncocytic variant of medullary thyroid carcinoma (OV-MTC) is a very unusual entity, up to date only 17 cases have been reported in the literature. MTC is a neuro-endocrine malignancy arising from the para-follicular C cells of the thyroid gland. It generally has a slight female predominance and appears as a single lesion. However in the Multiple Endocrine Neoplasia Syndrome 2, linked to the point mutation of <em>RET</em> oncogene, multifocal MTCs may also occur. Herein, we report the case of a 75 years old man with a rare form of sporadic multifocal and bilateral OV-MTC expressing wild-type <em>RET</em> gene. The histological and molecular features of this rare entity are presented and discussed with revision of the pertinent literature.