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相关概念视频

Synthesis and Regulation of Thyroid Hormones01:20

Synthesis and Regulation of Thyroid Hormones

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Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
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相关实验视频

Updated: May 1, 2026

Substernal Thyroid Biopsy Using Endobronchial Ultrasound-guided Transbronchial Needle Aspiration
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修改的贝塞斯达标准甲状腺吸收剂显著降低非诊断率,而不会降低敏感度.

Andrew A Renshaw1, Brian J Schiro2, Neeta Erinjeri3

  • 1Department of Pathology, Baptist Hospital and Miami Cancer Institute, Miami, Florida.

Journal of the American Society of Cytopathology
|May 21, 2024
PubMed
概括
此摘要是机器生成的。

修改的贝塞斯达标准通过减少非诊断率来改善甲状腺结节的诊断. 这项研究表明,改变了标准,降低了不充分的样本,而不会影响癌症检测灵敏度.

关键词:
足够性 足够性 足够性 足够性一个坚定的声明.细胞学 细胞学精细针的吸收方式一个分子分子的分子.甲状腺是什么?甲状腺是什么?

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科学领域:

  • 细胞病理学 细胞病理学
  • 甲状腺精细针吸入 (FNA)
  • 诊断的准确性 诊断的准确性

背景情况:

  • 甲状腺结节的评估依赖于精细针吸收 (FNA) 细胞学.
  • 贝塞斯达甲状腺细胞病理报告系统 (TBSRTC) 定义了充分性标准.
  • 之前的研究表明,修改TBSRTC充足性标准可以提高吸血剂充足率.

研究的目的:

  • 为了前性地评估修改的贝塞斯达系统充足性标准的性能.
  • 评估改变标准对非诊断率和诊断准确性的影响.
  • 为了确定修改是否会影响后续分子测试的灵敏度.

主要方法:

  • 一项为期6年的前性研究将1-59个卵泡细胞的甲状腺吸收物分类为"未诊断,偏好良性"或"稀缺但充足".
  • 稀少但充足的病例被归类为良性 (贝塞斯达类别2) 或未确定重要性 (AUS) 的异型 (贝塞斯达类别3).
  • 贝塞斯达3类病例经过了Afirma分子测试.

主要成果:

  • 修改后的标准使整体非诊断率从22%降至10% (P <0.001).
  • "无诊断,良性"的比率为3%,随访时恶性瘤的风险为2.6%.
  • "稀少但充分"和良性的病例率为8% (0%恶性瘤风险),AUS的"稀少但充分"病例率为4% (18%可疑率,50%恶性瘤风险).
  • 与标准充足病例相比,没有观察到"可疑"恶性瘤发生率或风险的显著差异.

结论:

  • 修改的贝塞斯达充分性标准有效地降低了甲状腺吸收的非诊断率.
  • 这些修改不会影响恶性瘤的诊断灵敏度.
  • 改变的标准提供了一种有价值的方法来提高甲状腺FNA样本的充分性.