Results: 15

A Rare Case of a Schwannoma on the Foot - Case Report

Rev. Bras. Ortop. (Online); 59 (supl.1), 2024
Abstract A Schwannoma is an infrequent lesion. This tumor derives from the myelin sheath of the peripheral nerves; in most cases, it is benign and rarely presents in the foot and ankle region. Patients affected by this type of pathology are usually asymptomatic. Still, they sometimes have sensory or moto...

Tumor de nervio periférico: una localización poco habitual

Rev. méd. Maule; 37 (1), 2022
Benign tumors of peripheral nerves called Schwannomas or neurilemomas, correspond to a rare pathology, represent 5% of all tumors of the upper extremity, and affects, mainly, the ulnar nerve. The incidence of Schwannoma in the literature for the radial nerve is not clearly established given the infrequen...

Tumor benigno de la vaina neural en rodilla. Reporte de caso y revisión bibliográfica
Knee neural sheath benign tumor. Case report and bibliographic revision

Artrosc. (B. Aires); 29 (4), 2022
El schwannoma es el tumor benigno de nervio periférico más frecuente. Su presencia en los nervios de miembros inferiores es excepcional, donde representan el 1% de todos los schwannomas. Presentamos el caso de una mujer de treinta y un años que consulta por dolor en la cara anterio...

Neurofibromatose tipo 1 com acometimento do nervo infraorbital: relato de caso

Rev. bras. cir. plást; 34 (4), 2019
A neurofibromatose tipo 1 é uma doença autossômica dominante rara, com manifestações clínicas diversas. Sua apresentação mais marcante é a presença de neurofibromas (tumores da bainha neural) cutâneos ou internos, que também podem ocorrer de forma esporádica, associados a outras manifestaç�...

Immunohistochemical Markers for Schwannomas, Neurofibromas and Malignant Peripheral Nerve Sheath Tumors—What Can the Recent Literature Tell Us?

Arq. bras. neurocir; 37 (2), 2018
Introduction Schwannomas and neurofibromas are the two most common benign neoplasms of the peripheral nerve sheath, and although they are generally easy to distinguish, in some cases, they can closely resemble one another. Furthermore, malignant peripheral nerve sheath tumors (MPNSTs), another example of...

Malignant Triton tumor: a rare cause of sciatic pain and foot drop

Rev. bras. ortop; 52 (4), 2017
ABSTRACT Malignant peripheral nerve sheath tumors (MPNST) are very rare and are frequently localized in the buttocks, thigh, arm, or paraspinal region; one variant is the malignant Triton tumor, with rhabdomyosarcomatous differentiation. The authors present a challenging differential diagnosis of a sciat...

Schwannoma lumbosacro gigante
Giant lumbosacral schwannoma

Fundamento: el schwannoma espinal es un tumor de las vainas nerviosas y se comporta intradural y extramedular y provienen de las células embrionarias de la cresta neural de los nervios periféricos. Representan entre el 25 y el 30 por ciento de los tumores y afectan a adultos entre 40 y 60, son raros en...

Malignant peripheral nerve sheath tumor with and without neurofibromatosis type 1

Arq. neuropsiquiatr; 75 (6), 2017
ABSTRACT Objective In this study, we review the institution’s experience in treating malignant peripheral nerve sheath tumors (MPNSTs). A secondary aim was to compare outcomes between MPNSTs with and without neurofibromatosis type 1 (NF1). Methods Ninety-two patients with MPNSTs, over a period ...