Pulmonary artery intramural leiomyosarcoma mimicking pulmonary aneurysm

Rie Kanaoka, Yusuke Takahashi, Shigeki Morita, Hitoshi Dejima, Noriyuki Matsutani, Masafumi Kawamura

Research output: Contribution to journalArticle


Chest radiography indicated a well-defined rounded mass at the left lung hilum in a 77-year-old former smoker. Chest computed tomography revealed a longitudinal saccular enlargement of the left pulmonary artery with surrounding soft tissue opacity. Resection of the left lower lobe with segment 1 + 2c was carried out to completely remove the dilated pulmonary artery. The resected specimen revealed obvious dilatation of the interlobar pulmonary artery and its branches. A small yellowish well-demarcated myxoid tumor was contained in this lesion, which was diagnosed as a primary pulmonary artery intramural leiomyosarcoma.

Original languageEnglish
Pages (from-to)896-898
Number of pages3
JournalAsian Cardiovascular and Thoracic Annals
Issue number9
Publication statusPublished - 2016 Nov 1
Externally publishedYes



  • Aneurysm
  • Diagnosis
  • differential
  • false
  • Leiomyosarcoma
  • Pulmonary artery
  • Vascular neoplasms

ASJC Scopus subject areas

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine

Cite this

Kanaoka, R., Takahashi, Y., Morita, S., Dejima, H., Matsutani, N., & Kawamura, M. (2016). Pulmonary artery intramural leiomyosarcoma mimicking pulmonary aneurysm. Asian Cardiovascular and Thoracic Annals, 24(9), 896-898. https://doi.org/10.1177/0218492316674860