Intravascular papillary endothelial hyperplasia (Masson lesion) of the hypopharynx and larynx

Guvenc A. G. , Derekoylu L., Korkut N. , Oz F., Oz B.

ENT-EAR NOSE & THROAT JOURNAL, vol.87, no.12, pp.700-702, 2008 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 87 Issue: 12
  • Publication Date: 2008
  • Doi Number: 10.1177/014556130808701214
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.700-702


Masson lesion is characterized by a benign intravascular papillary hyperplasia and subsequent thrombosis. Clinically, this lesion can be misdiagnosed as mucocele, hemangioma, Kaposi sarcoma, angiosarcoma, pyogenic granuloma, and several other lesions. In this article, we report a case of intravascular papillary endothelial hyperplasia of the hypopharynx and larynx, which caused dysphagla in an 18-year-old female patient. The lesion was excised entirely via a lateral pharyngotomy approach. We discuss the clinical and histopathologic features, differential diagnosis, and treatment of this uncommon entity.