An International Journal of Otorhinolaryngology Clinics

Register      Login

VOLUME 3 , ISSUE 2 ( May-August, 2011 ) > List of Articles


Angiomatous Nasal Polyp: A Condition Difficult to Diagnose

Neeti Verma, Narender Kumar, Neelam Sharma

Keywords : Antrochoanal polyp,Angiomatous polyp,Necrosis,Sphenochoanal polyp

Citation Information : Verma N, Kumar N, Sharma N. Angiomatous Nasal Polyp: A Condition Difficult to Diagnose. Int J Otorhinolaryngol Clin 2011; 3 (2):93-97.

DOI: 10.5005/jp-journals-10003-1062

Published Online: 01-12-2011

Copyright Statement:  Copyright © 2011; The Author(s).



Angiectatic nasal polyp (ANP) is a rare entity of inflammatory sinonasal polyp, constituting 4 to 5% of all nasal polyps.1 An angiomatous polyp originates from a sinochoanal polyp, either an antrochoanal or a sphenochoanal polyp. Their hallmark feature is extensive vascular proliferation and ectasia with deposition of pseudoamyloid and the presence of atypical stromal cells. This pseudoneoplastic entity is the result of extensive reactive and reparative changes in inflammatory SNPs.

Case report

We came across an interesting case of angiomatous nasal polyp. CT finding also supported the clinical impression of neoplastic mass but repeated biopsies were negative for malignancy. The mass was excised by lateral rhinotomy and the final impression of angiectatic nasal polyp was made.

Discussion and conclusion

Only few studies have been done on this topic and literature is also scant. Thus, awareness of their existence is of considerable importance. Differential diagnosis includes angiofibroma, malignancy, inverted papillomas and hemangiomas.

PDF Share
  1. Angiectatic nasal polyp localized in the maxillary sinus. Japanese J of Rhinology 2008;47(2): 105–08.
  2. Observations on histology of nasal polyps. Indian J of Otolaryngol and Head and Neck Surg May 2007;19(4):164–68.
  3. Angiectatic nasal polyps that clinically simulate a malignant process: Report of two cases and review of literature. Archives of Pathol Lab Med Mar 2000;124(3):406–10.
  4. Tumors of head and neck: Clinical and pathological considerations (2nd ed). Baltimore: Williams and Wilkins 1979;139–43.
  5. Antrochoanal polyp's variant, the angiomatous nasal polyp: A case report. Korean J Otolaryngol Head and Neck Surg Apr 2006;49(4):443–46.
  6. Infarcted angiomatous nasal polyps. Eur Arch Otolaryngol 2005;262:225–30.
  7. Choanal and angiomatous polyps of sinonasal tract. Ann Otol Rhinol Laryngol 1992;101:623–25.
  8. Does antrochoanal polyp presents with epistaxis? B-ENT 2007;3(3):145–47.
  9. Sinonasal polyp and its variant—the angiomatous polyp: MRI findings. Eur Radiol 2001;11(1):55–58.
  10. The angiomatous polyp and the angiofibroma: Two different lesions. Radiology 1982;144: 329–34.
  11. Sinochoanal polyp and its variant, the angiomatous polyp: MRI findings. Eur Radiol 2001;11(1):55–58.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.