Laryngeal schwannoma: a case report with emphasis on sonographic findings.
Schwannomas are benign nerve sheath tumors composed of Schwann cells, which normally produce the insulating myelin sheath covering peripheral, cranial and autonomic nerves. Twenty-five to forty-five percent of all schwannomas occur in the head and neck region, but location of such tumors in the larynx is rarely observed. The present report is aimed at describing a clinical case of laryngeal schwannoma, with emphasis on sonographic findings.
PhD, Associate Professor at Universidade Federal do Triângulo Mineiro (UFTM), Uberaba, MG, Brazil.
Luis Ronan Marquez Ferreira
LR
de Souza
PhD, Collaborating Physician at Escola Paulista de Medicina - Universidade Federal de São Paulo (EPM-Unifesp), São Paulo, SP, Brazil.
Harley
H
De Nicola
PhD, Speech-language Pathologist, Department of Speech-Language Pathology and Audiology, Escola Paulista de Medicina - Universidade Federal de São Paulo (EPM-Unifesp), São Paulo, SP, Brazil.
Rosiane
R
Yamasaki
MDs, Otorhinolaryngologists, ENT - Larynx and Voice Sector, Escola Paulista de Medicina - Universidade Federal de São Paulo (EPM-Unifesp), São Paulo, SP, Brazil.
José Eduardo
JE
Pedroso
MDs, Otorhinolaryngologists, ENT - Larynx and Voice Sector, Escola Paulista de Medicina - Universidade Federal de São Paulo (EPM-Unifesp), São Paulo, SP, Brazil.
Osíris de Oliveira Camponês
Ode O
do Brasil
PhD, Associate Professor, Escola Paulista de Medicina - Universidade Federal de São Paulo (EPM-Unifesp), São Paulo, SP, Brazil.
Hélio
H
Yamashita
Computed tomography; Laryngeal neoplasms; Ultrasonography