NCIt synonyms : Medullary Carcinoma of Thyroid; Medullary Thyroid Gland Carcinoma; Medullary Carcinoma of the Thyroid; Medullary Thyroid Carcinoma; Medullary Carcinoma of the Thyroid Gland; Medullary Thyroid Cancer; Thyroid Gland Neuroendocrine Carcinoma; C-Cell Carcinoma;
NCIt related terms : Thyroid Gland Medullary Cancer; Medullary Carcinoma of Thyroid Gland; C cell carcinoma; Medullary Carcinoma; MTC; Parafollicular cell carcinoma; Thyroid Medullary Carcinoma; CARCINOMA, C-CELL, MALIGNANT;
NCIt definition : A neuroendocrine carcinoma arising from the C-cells of the thyroid gland. It is closely
associated with multiple endocrine neoplasia syndromes. Approximately 10% to 20% of
medullary thyroid carcinomas are familial. Patients usually present with a thyroid
nodule that is painless and firm. In the majority of cases nodal involvement is present
at diagnosis. Surgery is the preferred treatment for both primary lesions and recurrences.
This carcinoma is generally not very sensitive to radiation and almost unresponsive
to chemotherapy.;
Alternative definition : NCI-GLOSS: Cancer that develops in C cells of the thyroid. The C cells make a hormone
(calcitonin) that helps maintain a healthy level of calcium in the blood.; NICHD: Carcinoma arising from the C-cells of the thyroid gland.; CDISC: A neuroendocrine malignant epithelial neoplasm arising from C-cells of the
thyroid gland.;