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Peer-reviewedCC BY-NC-NDRespirology case reports

Thoracic Endometriosis Mimicking a Lung Mass: Management With Single‐Stage Biopsy and Microwave Ablation

  • Min Hsieh1
  • Shun‐Mao Yang1,2
  • Hsien‐Neng Huang3
  1. 1Department of Surgery National Taiwan University Hospital Hsin‐Chu Branch Hsinchu Taiwan
  2. 2Interventional Pulmonology Center National Taiwan University Hospital Hsin‐Chu Branch Hsinchu Taiwan
  3. 3Department of Pathology National Taiwan University Hospital Hsin‐Chu Branch Hsinchu Taiwan
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Abstract

Thoracic endometriosis syndrome is a rare extrapelvic manifestation involving the pleura, diaphragm or lung parenchyma. Presentation as a solitary pulmonary nodule mimicking malignancy is uncommon. We report a 31‐year‐old asymptomatic woman with an enlarging right lower lobe nodule, measuring 1.8–2.1 cm over 3 months. Following shared decision‐making, single‐stage image‐guided biopsy and microwave ablation (MWA) were performed. Histopathology confirmed pulmonary endometriosis. No clinically significant postoperative complications occurred, and the patient was discharged on postoperative Day 1. Follow‐up CT at 6 and 12 months demonstrated no obvious local recurrence without additional treatment. This case describes a potential minimally invasive approach for selected pulmonary lesions, although the safety, efficacy and long‐term outcomes of MWA for pulmonary endometriosis remain uncertain.

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Cite

BibTeXRIS
BibTeX
@article{hsieh2026thoracic,
  title = {{Thoracic Endometriosis Mimicking a Lung Mass: Management With Single‐Stage Biopsy and Microwave Ablation}},
  author = {Min Hsieh and Shun‐Mao Yang and Hsien‐Neng Huang},
  journal = {Respirology case reports},
  year = {2026},
  month = nov,
  doi = {10.1002/rcr2.70811},
  url = {https://europepmc.org/article/PMC/PMC13727506},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - Thoracic Endometriosis Mimicking a Lung Mass: Management With Single‐Stage Biopsy and Microwave Ablation
AU  - Min Hsieh
AU  - Shun‐Mao Yang
AU  - Hsien‐Neng Huang
PY  - 2026
DA  - 2026/11/01
JO  - Respirology case reports
DO  - 10.1002/rcr2.70811
UR  - https://europepmc.org/article/PMC/PMC13727506
AB  - Thoracic endometriosis syndrome is a rare extrapelvic manifestation involving the pleura, diaphragm or lung parenchyma. Presentation as a solitary pulmonary nodule mimicking malignancy is uncommon. We report a 31‐year‐old asymptomatic woman with an enlarging right lower lobe nodule, measuring 1.8–2.1 cm over 3 months. Following shared decision‐making, single‐stage image‐guided biopsy and microwave ablation (MWA) were performed. Histopathology confirmed pulmonary endometriosis. No clinically significant postoperative complications occurred, and the patient was discharged on postoperative Day 1. Follow‐up CT at 6 and 12 months demonstrated no obvious local recurrence without additional treatment. This case describes a potential minimally invasive approach for selected pulmonary lesions, although the safety, efficacy and long‐term outcomes of MWA for pulmonary endometriosis remain uncertain.
SN  - 2051-3380
ER  -