2020
DOI: 10.1055/s-0040-1702962
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Análise retrospectiva de 20 pacientes acometidos por schwannoma nos membros superior e inferior

Abstract: Resumo Objetivo Analisar o perfil epidemiológico e a evolução de 20 pacientes diagnosticados com schwannoma nos membros superiores e inferiores. Métodos Definiu-se um grupo de pacientes para avaliação retrospectiva, compreendendo o período entre fevereiro de 2002 e junho de 2018, no qual foram estudados e avaliados 20 prontuários de pacientes submetidos a procedimento cirúrgico devido a schwannoma; a confirmação diagnóstica foi feita pelo exame anatomopatológico. Resultados Tanto … Show more

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Cited by 6 publications
(12 citation statements)
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“…Furthermore, in cases when a schwannoma affects the upper limbs, it has been reported to prefer the anterior surface of the forearm due to the high concentration of nerve fibers, of which the ulnar and median nerves are the most affected. 3 In the case of this patient, radiography was requested for differential diagnosis, and electroneuromyography for confirmation. As there was no palpable mass, imaging tests such as ultrasound (US) or magnetic resonance imaging (MRI) were not requested, since the motor alteration was already triggered.…”
Section: Discussionmentioning
confidence: 92%
“…Furthermore, in cases when a schwannoma affects the upper limbs, it has been reported to prefer the anterior surface of the forearm due to the high concentration of nerve fibers, of which the ulnar and median nerves are the most affected. 3 In the case of this patient, radiography was requested for differential diagnosis, and electroneuromyography for confirmation. As there was no palpable mass, imaging tests such as ultrasound (US) or magnetic resonance imaging (MRI) were not requested, since the motor alteration was already triggered.…”
Section: Discussionmentioning
confidence: 92%
“…Schwann cell nuclei become hyperchromatic and multilobulated, resulting in a grayish-yellow coloration. Immunohistochemical tests show positive immunoreactivity for the S-100 and Leu-7 proteins [7].…”
Section: Discussionmentioning
confidence: 99%
“…They demonstrate a slow growth rate, lack invasive tendencies, and present a smooth surface with a coloration ranging from yellowish-gray to whitish-gray. Initial symptoms may include painless edema persisting for years, followed by pain, paresthesia, hypoesthesia, and motor deficits as adjacent structures are compressed and local tissue lacks distensibility [7]. Although schwannomas are usually solitary (95%), multiple tumors can occur in the extremities, a condition referred to as schwannomatosis.…”
Section: Discussionmentioning
confidence: 99%
“…Este caso es particularmente relevante, porque la literatura refiere que son pocos los casos de schwannoma en rodilla 5 . En este caso presentado se trata de un paciente de sexo masculino, aunque la literatura menciona que no hay diferencia significativa en cuanto al sexo 6,7 .…”
Section: Discussionunclassified
“…Su presentación no revela diferencias significativas entre mujeres y hombres (relación de 1.4:1 respectivamente) 6,7 . La edad de aparición oscila entre los 0.4 y 90 años, con una media de 45.9 años.…”
Section: Epidemiologíaunclassified