Medullary Thyroid Carcinoma
Medullary Thyroid Carcinoma (MTC) is a rare form of thyroid cancer that originates from the parafollicular C cells of the thyroid gland, which produce the hormone calcitonin. Unlike other thyroid cancers, MTC often secretes calcitonin and can be sporadic or hereditary, with the hereditary forms linked to Multiple Endocrine Neoplasia type 2 (MEN 2) syndrome.
Common Symptoms
- Neck lump or nodule
- Hoarseness or voice changes
- Difficulty swallowing (dysphagia) or breathing (dyspnea)
- Chronic diarrhea or flushing
Clinical Sources
- Medullary Thyroid Cancer: What It Is, Symptoms & TreatmentCleveland Clinic
Diagnostic Lab Tests
Tests commonly used to diagnose or monitor Medullary Thyroid Carcinoma:
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