Korean J Otorhinolaryngol-Head Neck Surg.  2015 Jul;58(7):492-496. 10.3342/kjorl-hns.2015.58.7.492.

Intravascular Papillary Endothelial Hyperplasia of the Nasopharynx: A Case Report and Review of the Literature

• Kim SI
• Byun YS
• Dong SH
• Lee KH

• KMID: 1964251
• DOI: http://doi.org/10.3342/kjorl-hns.2015.58.7.492

Abstract

Intravascular papillary endothelial hyperplasia (IPEH) is a rare benign proliferation of intravascular endothelial cells. However, IPEH can be easily mistaken for an angiosarcoma, thus differential diagnosis is very important to avoid over-treatment. We report the case of a 22-year-old man who presented with small lobulating mass in nasopharynx. Computed tomography showed about 4 cm homogenous mass in the nasopharynx without extension into soft tissues. Complete surgical excision was done and biopsy during operation showed distended vessels and numerous papillae consist of endothelial cells lining a hyaline core. At follow up, no other complications were observed. Thus we present the case and a review of the literature.

Keyword

Intravascular papillary endothelial hyperplasia; Masson's pseudoangiosarcoma; Nasopharynx

MeSH Terms

Biopsy
Diagnosis, Differential
Endothelial Cells
Follow-Up Studies
Hemangiosarcoma
Humans
Hyalin
Hyperplasia*
Nasopharynx*
Young Adult