Solitary pulmonary metastasis from occult papillary thyroid carcinoma

Kaoru Kaseda, Ken Ichi Watanabe, Hiroyuki Sakamaki, Akio Kazama

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Pulmonary metastases from thyroid carcinoma typically cause a micronodular or miliary pattern throughout both lungs. Metastasis consisting of a solitary pulmonary nodule measuring 20mm in diameter is rare. Here we report a case of a 66-year-old woman without a history of papillary thyroid carcinoma who presented with a pulmonary nodule measuring 20mm in diameter, found on chest computed tomography during a health checkup. The patient underwent a right lobectomy. Microscopic examination showed well-differentiated papillary adenocarcinoma. Immunohistochemical findings were consistent with a diagnosis of pulmonary metastasis from papillary thyroid carcinoma. Solitary metastasis to the lung from occult thyroid carcinoma is quite rare, but if a pulmonary nodule is encountered in a patient without a history of thyroid carcinoma, the possibility must be considered.

Original languageEnglish
Pages (from-to)261-263
Number of pages3
JournalThoracic Cancer
Issue number2
Publication statusPublished - 2016 Mar 1
Externally publishedYes


  • Papillary thyroid carcinoma
  • Solitary pulmonary metastasis
  • Surgical resection

ASJC Scopus subject areas

  • Oncology
  • Pulmonary and Respiratory Medicine


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