Three Cases of Neck Swelling after FNAC (fine-needle aspiration cytology)

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  • Ohtsuka Yuichiro
    Department of Otorhinolaryngology, Japanese Red Cross Narita Hospital
  • Nemoto Toshimitsu
    Department of Otorhinolaryngology, Japanese Red Cross Narita Hospital
  • Kunii Naoki
    Department of Otorhinolaryngology Head and Neck Surgery Chiba University
  • Hanazawa Toyoyuki
    Department of Otorhinolaryngology Head and Neck Surgery Chiba University
  • Okamoto Yoshitaka
    Department of Otorhinolaryngology Head and Neck Surgery Chiba University

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Other Title
  • 甲状腺吸引細胞診 (FNAC) 後の頸部腫脹3例
  • 症例報告 甲状腺吸引細胞診(FNAC)後の頸部腫脹3例
  • ショウレイ ホウコク コウジョウセン キュウイン サイボウシン(FNAC)アト ノ ケイブ シュチョウ 3レイ

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Abstract

<p>　Fine-needle aspiration cytology (FNAC) is considered a safe procedure, but it causes massive neck swelling and airway obstruction rarely. Neck swelling after FNAC is caused by two mechanisms: by hematoma or by release of vasodilator substances in thyroid cells and nerve terminals. The latter condition was previously reported as an acute and frightening swelling of the thyroid, but is not named appropriately. For convenience, we therefore refer to the condition as dTSaFNA (diffuse thyroid swelling after fine-needle aspiration) in this report. dTSaFNA is usually transient and rarely results in airway obstruction. We report one case of thyroid hematoma and two cases of dTSaFNA. All three cases were treated in hospital and recovered completely.</p>

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