Radiology Case Reports (Jun 2022)

Hemoptysis after coil embolization for pulmonary arteriovenous malformation: Histopathological confirmation of bronchial epithelium extension

  • Takashi Yanagihara, MD,
  • Masashi Shimohira, MD,
  • Masanori Inoue, MD,
  • Keita Nakayama, MD,
  • Masashi Tamura, MD,
  • Seishi Nakatsuka, MD,
  • Hideo Hattori, MD,
  • Katsura Emoto, MD,
  • Keisuke Yokota, MD,
  • Katsuhiro Okuda, MD,
  • Ryoichi Nakanishi, MD,
  • Kaoru Kaseda, MD,
  • Chihaya Maeda, MD,
  • Keisuke Asakura, MD,
  • Akio Hiwatashi, MD

Journal volume & issue
Vol. 17, no. 6
pp. 2101 – 2105

Abstract

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Coil embolization is widely performed for pulmonary arteriovenous malformations (PAVMs). We describe herein 2 cases of hemoptysis during long-term follow-up after coil embolization for PAVMs. For both cases, lobectomy was performed and histopathological examinations revealed chronic inflammation and bronchial epithelium extension into the sac of the PAVM. In addition, we performed a systematic review of previous reports of hemoptysis after embolization for PAVMs.

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