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Case Details

Thyroid Nodule

  • Author: Dr. Hasan Altarrah
  • Published Date: 09/05/2026
  • Last Modified Date:
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  • Category :Internal Medicine
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Additional Information:

  • CC: Neck Lump

Description

Risk Factors for Malignant Nodule
  • Rapid growth of a neck mass
  • Childhood head and neck irradiation
  • Total body irradiation for bone marrow transplantation
  • Family history of thyroid cancer or thyroid cancer syndromes (eg, Multiple Endocrine Neoplasia Type 2 - MEN2)
When Will You Do FNA?
  • FNA should be performed in nodules that are solid and hypoechoic if they are ≥1.5 cm
  • FNA should also be performed in nodules ≥1 to 1.5 cm with suspicious sonographic features
  • Irregular margins (≥1.5 cm)
  • Macrocalcifications (≥1.5 cm)
  • Any combination of suspicious features (≥1 cm)
  • Microcalcifications (≥1 cm)
  • Peripheral (rim) calcifications (≥1.5 cm)
  • Taller-than-wide shape (≥1 cm)
Monitoring
  • Nodules that do not meet sonographic criteria for FNA should be monitored with periodic ultrasonography
  • 6 to 12 months for subcentimeter nodules with suspicious characteristics
  • 12 to 24 months for nodules with low to intermediate suspicion on ultrasound
  • 2 to 3 years for very low-risk nodules
Mounjaro (Tirzepatide) & Thyroid Cancer
  • Currently not known to be linked to thyroid cancer
  • No reports among people in FDA clinical trials
  • Not prescribed if you or a family member has had Medullary Thyroid Cancer or MEN 2

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