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A Case of Thyroid Hyalinizing Trabecular Tumor Mistaken for Papillary Carcinoma in Aspiration Cytology

흡인 세포검사에서 유두상 암종으로 오인된 갑상선 유리질 소주형 종양 1예

  • Hong, Seok Jung (Department of Otolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center) ;
  • Kim, Eun Ju (Department of Pathology, Veterans Health Service Medical Center) ;
  • Kim, Seung Woo (Department of Otolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center)
  • 홍석정 (중앙보훈병원 이비인후과) ;
  • 김은주 (중앙보훈병원 병리과) ;
  • 김승우 (중앙보훈병원 이비인후과)
  • Received : 2018.02.24
  • Accepted : 2018.03.27
  • Published : 2018.05.30

Abstract

Hyalinizing trabecular tumor (HTT) of the thyroid gland is a rare neoplasm and only less than 100 cases have been reported so far. It is characterized by hyalinizing stroma with trabecular growth pattern and has an indolent clinical course. Because of its histologic features, it is frequently misdiagnosed as papillary or medullary carcinoma in fine needle aspiration cytologic findings. The tumor is benign or low malignant potential and thyroid lobectomy is recommended for adequate treatment. We recently experienced a case of thyroidal HTT in a 57-year-old man, who presented with a right thyroid nodule that was suspicious of papillary carcinoma in aspiration cytology. We report the unique and rare disease entity with brief literature review.

Keywords

References

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