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The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
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Computed tomography features of benign and malignant solid thyroid nodules.

Dong Wook Kim1, Soo Jin Jung2, Hye Jin Baek3

  • 1Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea dwultra@lycos.co.kr.

Acta Radiologica (Stockholm, Sweden : 1987)
|October 9, 2014
PubMed
Summary
This summary is machine-generated.

Computed tomography (CT) can help distinguish benign from malignant solid thyroid nodules. Nodular enhancement patterns on CT are key features for accurate differentiation, aiding surgical planning.

Keywords:
Thyroidcomputed tomographymalignancysolidthyroid nodule

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Area of Science:

  • Radiology
  • Oncology
  • Pathology

Background:

  • No prior studies have detailed computed tomography (CT) features for differentiating benign and malignant solid thyroid nodules.
  • Histopathological results are crucial for validating CT findings in thyroid nodule assessment.

Purpose of the Study:

  • To evaluate specific computed tomography (CT) features for distinguishing benign from malignant solid thyroid nodules.
  • To correlate CT findings with histopathological results in patients undergoing thyroid surgery.

Main Methods:

  • Retrospective analysis of neck CT scans from 151 patients who underwent thyroid surgery.
  • Evaluation of detailed CT features, including nodular enhancement, by a single radiologist.
  • Histopathological confirmation of nodule type (benign vs. malignant) as the gold standard.

Main Results:

  • 162 solid thyroid nodules were analyzed, with 116 malignant and 46 benign.
  • Degree and pattern of nodular enhancement significantly differed between malignant and benign nodules.
  • Features like exophytic configuration, irregular margins, taller-than-wide shape, punctate calcifications, and homogeneously decreased enhancement indicated higher malignancy risk.

Conclusions:

  • Degree and pattern of nodular enhancement are valuable CT indicators for differentiating malignant from benign solid thyroid nodules.
  • CT imaging provides important clues for preoperative assessment of thyroid nodules, complementing histopathology.