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Multifractal Spectrum Analysis for Assessing Pulmonary Nodule Malignancy
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Is thyroid nodule location associated with malignancy risk?

Valeria Ramundo1, Livia Lamartina1, Rosa Falcone1

  • 1Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy.

Ultrasonography (Seoul, Korea)
|January 29, 2019
PubMed
Summary
This summary is machine-generated.

Thyroid nodules in the middle lobe show a higher risk of malignancy. This finding was independent of nodule characteristics and ultrasonographic features, highlighting location as a key factor in thyroid cancer risk assessment.

Keywords:
CytologyLocationNeoplasmsThyroid Imaging, Reporting, and Data SystemThyroid nodule

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Area of Science:

  • Endocrinology
  • Oncology
  • Radiology

Background:

  • Thyroid nodules are common, with location potentially influencing malignancy risk.
  • Previous studies suggest upper pole nodules may have increased risk.

Purpose of the Study:

  • To investigate the association between thyroid nodule location and malignancy risk.
  • To determine if nodule location is an independent risk factor for thyroid cancer.

Main Methods:

  • Prospective collection of fine-needle aspiration cytology (FNAC) data from 832 thyroid nodules.
  • Analysis of nodule malignancy based on precise longitudinal location and ultrasonographic classification systems (TIRADS).

Main Results:

  • Malignancy was significantly more frequent in mid-lobar thyroid nodules (13.2%; OR, 9.74).
  • Upper pole location showed a significant association with malignancy (OR, 6.92) using ACR TIRADS.
  • Nodule location remained a significant risk factor independently of ultrasonographic appearance.

Conclusions:

  • Mid-lobar thyroid nodules present a significantly elevated risk of malignancy.
  • Longitudinal nodule location is an independent risk factor for thyroid cancer, irrespective of ultrasonographic features.