A D King1, A T Ahuja, W King, C Metreweli. 1. Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
Abstract
OBJECTIVE: Peripheral nerve tumors (PNTs) of the neck are uncommon and are frequently mistaken for lymph nodes. The purpose of this study is to describe the sonographic appearance of PNTs in the neck and determine features useful in differentiating PNTs from lymph nodes. CONCLUSION: PNTs of the neck have features that should alert the sonographer to the correct diagnosis. Features of value in differentiating PNTs from lymph nodes include a solitary, oval, hypoechoic mass with posterior enhancement and absence of an echogenic hilum. These features should lead to a careful search for the associated nerve to confirm the diagnosis. In addition, schwannomas have a vascular pattern indicating marked hypervascularity that can be obliterated with light pressure from the probe.
OBJECTIVE:Peripheral nerve tumors (PNTs) of the neck are uncommon and are frequently mistaken for lymph nodes. The purpose of this study is to describe the sonographic appearance of PNTs in the neck and determine features useful in differentiating PNTs from lymph nodes. CONCLUSION: PNTs of the neck have features that should alert the sonographer to the correct diagnosis. Features of value in differentiating PNTs from lymph nodes include a solitary, oval, hypoechoic mass with posterior enhancement and absence of an echogenic hilum. These features should lead to a careful search for the associated nerve to confirm the diagnosis. In addition, schwannomas have a vascular pattern indicating marked hypervascularity that can be obliterated with light pressure from the probe.
Authors: Y N Kami; T Chikui; K Okamura; Y Kubota; K Oobu; H Yabuuchi; E Nakayama; K Hashimoto; K Yoshiura Journal: Dentomaxillofac Radiol Date: 2011-11-10 Impact factor: 2.419
Authors: Ronaldo C da Costa; Joane M Parent; Howard Dobson; Kristiina Ruotsalo; David Holmberg; M Carolina Duque; Roberto Poma Journal: Can Vet J Date: 2008-01 Impact factor: 1.008