Preoperative endovascular embolization in an easily bleeding respiratory epithelial adenomatoid hamartoma of the olfactory cleft: A case report

Jun Suzuki, Hiroki Tozuka, Tomotaka Hemmi, Hiroyuki Ikushima, Tomohiko Ishikawa, Yohei Morishita, Kazuhiro Nomura, Mitsuru Sugawara, Yukio Katori

Research output: Contribution to journalArticlepeer-review

Abstract

Respiratory epithelial adenomatoid hamartomas (REAHs) are rare tumors occurring in the nasal cavity and sinuses, and their etiology is unknown. REAH is a relatively recently established lesion and is often misdiagnosed as nasal polyposis or other tumors. Preoperative endovascular embolization for sinonasal tumors is now widely accepted as an effective method to reduce blood loss, soften the tumor, and facilitate surgical procedures. However, to the best of our knowledge, there are no reports of the requirement for preoperative embolization in the management of REAH. Here, we present a 70-year-old man with an easily bleeding REAH of the olfactory cleft, vascularized by branches of the bilateral internal and external carotid arteries. We removed the tumor endoscopically after preoperative embolization of the bilateral sphenopalatine arteries. Histological investigation revealed an intratumoral hemorrhage accompanying the REAH, with no evidence of a residual or recurrent tumor during the last follow-up at 3 months. In conclusion, accurate preoperative diagnosis and proper preoperative interventions such as embolization are needed for safe and adequate treatment of REAHs that have an abundant blood flow.

Original languageEnglish
Pages (from-to)107-110
Number of pages4
JournalTohoku Journal of Experimental Medicine
Volume254
Issue number2
DOIs
Publication statusPublished - 2021
Externally publishedYes

Keywords

  • Endoscopic endonasal surgery
  • Nasal cavity
  • Olfactory cleft
  • Preoperative embolization
  • Respiratory epithelial adenomatoid hamartoma (REAH)

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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