Mild sensory symptoms during SARS-CoV-2 infection among healthcare professionals.

INTRODUCTION: It is not yet possible to estimate the proportion of patients with COVID-19 who present distinguishable classical neurological symptoms and syndromes. The objective of this study is to estimate the incidence of sensory symptoms (hypoaesthesia, paraesthesia, and hyperalgesia) in physicians who have presented the disease at Hospital Universitario Fundación Alcorcón (HUFA) in Madrid; to establish the relationship between sensory symptoms and the presence of other signs of infection; and to study their association with the severity of COVID-19. METHODS: We conducted a descriptive, cross-sectional, retrospective, observational study. HUFA physicians who presented SARS-CoV-2 infection between 1 March and 25 July 2020 were included in the study. A voluntary, anonymous survey was distributed via corporate email. Sociodemographic and clinical characteristics were collected from professionals with PCR- or serology-confirmed COVID-19. RESULTS: The survey was sent to 801 physicians and we received 89 responses. The mean age of respondents was 38.28 years. A total of 17.98% presented sensory symptoms. A significant relationship was found between the presence of paraesthesia and cough, fever, myalgia, asthaenia, and dyspnoea. A significant relationship was also found between paraesthesia and the need for treatment and admission due to COVID-19. Sensory symptoms were present from the fifth day of illness in 87.4% of cases. CONCLUSIONS: SARS-CoV-2 infection can be associated with sensory symptoms, mostly in severe cases. Sensory symptoms often appear after a time interval, and may be caused by a parainfectious syndrome with an autoimmunity background.

Exodontia de pré-molar incluso em íntimo contato com o nervo mentoniano: relato de caso / Unerupted premolar extraction in close contact with the mental nerve: case report

Ocasionalmente, as unidades dentárias sofrem alterações em sua região de desenvolvimento natural, impossibilitando a erupção ou irrompimento em posições funcionais. Objetivo: O presente trabalho tem como objetivo relatar o procedimento ambulatorial de exodontia de pré-molar impactado em íntimo contato com o nervo mentual, observando os riscos presentes. Relato de Caso: Paciente do gênero feminino, faioderma, 30 anos de idade, procurou o serviço de Cirurgia e Traumatologia Bucomaxilofacial da OSID/UFBA para exodontia da unidade 35 inclusa, com finalidade ortodôntica, após insucesso de tracionamento prévio. O plano de tratamento incluiu exodontia do elemento 35 sob anestesia local. No pós-operatório de sete dias, foi referida presença de hipoestesiaemregião de mento e lábioesquerdo, sendo esta sintomatologia ausente após o vigésimo primeiro dia de acompanhamento. No momento, em acompanhamento de 04 meses de pós-operatório, a paciente encontra-se sem sinais e sintomas de hipoestesia em hemiface afetada, bem como retorno ao tratamento ortodôntico. Conclusão: A técnica cirúrgica minimamente invasiva é imprescindível para obtenção de bons resultados com o mínimo de repercussão para o paciente, ainda que o trauma cirúrgico devido ao afastamento do nervo mentoniano possa provocar alteração de sensibilidade pós-operatória temporária. Este caso pode contribuir para a literatura mínima disponível sobre os segundos pré-molares impactados, oferecendo uma opção de abordagem em seu plano de tratamento, de forma a evitar lesões ao nervo mentoniano e persistência de hipoestesia no pós-operatório(AU)

Occasionally, dental units undergo changes in their region of natural development, making it impossible to erupt in functional positions. Objective: The present study aims to report the outpatient procedure of impacted premolar extraction in close contact with the mental nerve, observing the present risks. Case Report: Female patient, faioderm, 30 years old, sought the Service of Oral and Maxillofacial Surgery of OSID/UFBA for extraction of included unit 35, with orthodontic purpose, after failure of previous orthodontic traction. Conclusion: The minimally invasive surgical technique is essential to obtain good results with minimal repercussion for the patient, although the surgical trauma due to the separation of mental nerve may cause a change in the temporary postoperative sensitivity. This case may contribute to the minimal literature available about impacted second premolars, offering an option of approach in its treatment plan, in order to avoid lesions to the mental nerve and persistence of postoperative hypoesthesia(AU)

Lepra neural pura de 18 años de evolución / 18 years of pure neuritic leprosy

La lepra puede presentar dificultades diagnósticas, especialmente en la forma neural primaria. Un hombre de 38 años, exsoldado y trabajador rural, presentó durante más de 10 años hiperestesia supraclavicular y supraescapular izquierdas y anestesia progresiva escapular y en guante de la mano y brazo izquierdos, con reabsorción ósea de las falanges distales del primero y segundo dedos de la misma mano, cambios que le dificultaban realizar sus labores; no tenía lesiones cutáneas de lepra. El nervio cubital izquierdo presentaba engrosamiento epitroclear, por lo que se sospechó lepra neural pura. Las baciloscopias de moco, pabellones auriculares y codos fueron negativas, al igual que los anticuerpos IgM contra el glicolípido fenólico 1; dos biopsias de piel de zonas anestésicas fueron normales también. La electromiografía evidenció disminución notoria de los potenciales sensitivos de los nervios cubital, radial y mediano izquierdos, lo cual favoreció el diagnóstico de lepra neural primaria. Se inició tratamiento para lepra multibacilar por tener afección de más de un tronco nervioso, dos meses después comenzó a presentar mejoría notoria de los síntomas y logró reanudar sus actividades comunes y laborales. La lepra neural primaria cursa con zonas de hipoestesia y anestesia cutánea y engrosamiento neural troncular, puede permanecer sin diagnóstico durante años. La electromiografía, que demuestra disminución de los potenciales sensitivos, es una ayuda diagnóstica considerable, mientras la biopsia de piel anestésica ayuda al diagnóstico solo en la tercera parte de los casos. La sospecha clínica razonable es suficiente para iniciar tratamiento antileproso, cuando no se dispone de otros medios diagnósticos.

Leprosy can be difficult to diagnose, in particular the pure neuritic leprosy type. A 38-year-old male, former soldier and rural worker, presented with a 10-year history of supraclavicular and suprascapular hyperesthesia of the left side and progressive scapular left arm anesthesia, including the hand, associated with bone resorption in distal phalanges of the first and second finger. No typical leprosy skin changes were present. An examination of the skin revealed epitrochlear thickening of the left side cubital nerve, therefore primary neural leprosy was suspected. Skin smears from the routine sites were normal, as were two skin biopsies and the serologic assay specific for M leprae to detect phenolic glycolipid-1. Electromyography revealed an important reduction in the sensory action potential of the ulnar, radial and medial nerves, which favored the primary neural leprosy diagnosis. After two months of multibacillar leprosy treatment, the symptoms started to disappear and the patient could recommence his old job. Pure neuritic leprosy presents with skin areas of hypesthesia and anesthaesia associated with nerve thickening. It is a disease that is commonly misdiagnosed for several years before the correct diagnosis is made and effective treatment is started. Electromyography can be a helpful tool in the diagnosis, typically showing reduced sensory action potential, while a biopsy of anesthetic skin is only helpful in one-third of cases. Reasonable clinical suspicion is sufficient to initiate antileprosy treatment when no other diagnostic methods are available.

Neurotrophic keratopathy secondary to trigeminal nerve aplasia in patient with Goldenhar syndrome.

CASE REPORT: A 4-year-old male diagnosed with Goldenhar syndrome, with an unremarkable ophthalmic history, develops a neurotrophic ulcer secondary to trigeminal nerve aplasia. It was treated with multilaminar amniotic membrane transplantation. DISCUSSION: Trigeminal nerve aplasia is not usually reported in Goldenhar syndrome. Therefore, it seems necessary to perform routine eye examinations, from an early age, to prevent serious complications associated with corneal anaesthesia.

Numb chin syndrome as a manifestation of jaw metastasis diagnosed in a bone scan.

In many cases, numb chin syndrome (NCS) may represent a banal pathology. However, as it can be associated with malignant processes, its presence should alert the clinician of a possible occult disease. In patients already diagnosed with cancer, it often represents an ominous sign that indicates poor prognosis, due to the rapid progress of the disease. The case is presented of a 62-year-old man diagnosed with synchronous lung and bladder cancer, who suddenly complained of numbness in the chin. The bone scan confirmed the suspicion of metastastic bone disease, and the patient died two months after the appearance of this sign.

Avaliação da eficácia do uso dos monofilamentos de Semmes-Weinstein para avaliação da sensibilidade abdominal / Evaluation of the effectiveness of Semmes­Weinstein monofilaments in assessing abdominal sensitivity

OBJETIVO: O objetivo deste estudo é avaliar se o método de Semmes-Weinstein tem resultados consistentes e verificar se existem diferenças de sensibilidade entre as regiões da parede abdominal. MÉTODOS: Os monofilamentos de Semmes-Weinstein foram utilizados para avaliar a sensibilidade da pele à pressão abdominal em 20 voluntárias. A pele abdominal foi dividida em nove regiões. A avaliação da sensibilidade cutânea à pressão foi realizada três vezes em cada área, com um intervalo de uma semana entre as medidas. RESULTADOS: Analisando-se as três medidas em cada área, isoladamente, não houve diferenças significativas no limiar pressórico. No entanto, o método de Semmes-Weinstein mostrou diferença estatisticamente significativa entre os valores pressóricos obtidos de cada região abdominal. CONCLUSÕES: Os monofilamentos de Semmes-Weinstein são consistentes para avaliar a sensibilidade da pele abdominal à pressão. Notou-se que o método de Semmes-Weinstein mostrou diferença estatisticamente significativa entre as diferentes áreas da região abdominal. Utilizando-se a metodologia do presente estudo, foi possível estabelecer um protocolo para reduzir o aspecto subjetivo, medindo a sensibilidade à pressão.

OBJECTIVE: The aim of this study is to evaluate whether Semmes-Weinstein monofilaments could be used to reliably assess the sensitivities of different abdominal wall regions. METHODS: Semmes-Weinstein monofilaments were used to evaluate skin sensitivity to abdominal pressure in 20 volunteers. The abdominal skin was divided into nine regions. The assessment of skin sensitivity to pressure was carried out three times in each area, with 1 week intervals between measurements. RESULTS: No significant differences in the pressure threshold were observed when the three measurements in each region were analyzed separately. However, with the Semmes-Weinstein monofilament technique, a statistically significant difference was observed between the values of pressure obtained in each abdominal region. CONCLUSIONS: Semmes-Weinstein monofilaments are a reliable tool in evaluating abdominal skin sensitivity to pressure. A statistically significant difference was observed between the different areas of the abdominal region with this technique. With the method reported in this study, it was possible to establish a protocol to reduce subjectivity and measure the skin sensitivity to pressure.

Reporte de 2 casos de mielopatía progresiva tardía posradiación / Report of two cases of late progressive myelopathy postradiation

Las complicaciones de la radioterapia se pueden presentar de manera aguda, subaguda o retardada y son diferentes en sus manifestaciones, según afecten al cerebro, la médula espinal o los nervios periféricos. Se presentaron 2 pacientes que recibieron tratamiento con radioterapia y después de un año del proceder terapéutico desarrollaron manifestaciones clínicas e imaginológicas compatibles con una mielopatía posradiación. Ninguno ha tenido progresión de la enfermedad con el uso de los esteroides aplicados(AU)

Complications of radiation therapy can occur in acute, subacute or delayed manner and they are different in manifestations, as they affect the brain, spinal cord or peripheral nerves. Two patients who were treated with radiotherapy were presented and after a year of therapeutic procedure, they developed clinical manifestations and imaging features consistent with a post-radiation myelopathy. None had disease progression with the use of steroids(AU)

Reporte de 2 casos de mielopatía progresiva tardía posradiación / Report of two cases of late progressive myelopathy postradiation

Las complicaciones de la radioterapia se pueden presentar de manera aguda, subaguda o retardada y son diferentes en sus manifestaciones, según afecten al cerebro, la médula espinal o los nervios periféricos. Se presentaron 2 pacientes que recibieron tratamiento con radioterapia y después de un año del proceder terapéutico desarrollaron manifestaciones clínicas e imaginológicas compatibles con una mielopatía posradiación. Ninguno ha tenido progresión de la enfermedad con el uso de los esteroides aplicados...

Complications of radiation therapy can occur in acute, subacute or delayed manner and they are different in manifestations, as they affect the brain, spinal cord or peripheral nerves. Two patients who were treated with radiotherapy were presented and after a year of therapeutic procedure, they developed clinical manifestations and imaging features consistent with a post-radiation myelopathy. None had disease progression with the use of steroids...

Influência do tempo de aplicação da crioterapia na sensibilidade cutânea / Influence of cryotherapy application time on skin sensitivity

Justificativa e objetivos: A crioterapia é uma modalidade de tratamento com inúmeros efeitos terapêuticos, de baixo custo, de fácil aplicação e acesso. Os objetivos deste estudo foram verificar se existe alteração na sensibilidade de acordo com o tempo de aplicação da crioterapia além do comportamento da sensibilidade cutânea pós-aplicação. Métodos: Vinte e um sujeitos (14 mulheres e 7 homens, idade média 23,8±4 anos) foram divididos aleatoriamente em 3 grupos, com 7 sujeitos cada, tendo recebido aplicação da crioterapia por 10, 20 ou 30 minutos, denominados respectivamente grupos C10, C20 e C30. Todos foram previamente submetidos à avaliação da sensibilidade cutânea com monofilamento de Semmes-Weinstein, e avaliados imediatamente ao término da aplicação da crioterapia, 5, 10 e 15 minutos após a aplicação. Para análise dos dados foi utilizado o teste de Friedman complementado pelo pós-teste de comparação múltipla (post hoc de Dunn). Resultados: Na avaliação imediatamente após a aplicação da crioterapia todos os sujeitos apresentaram hipoestesia. Observou-se diferença significativa no retorno da sensibilidade do grupo C20 em relação aos demais, após 10 minutos da intervenção (p=0,0498). Para os grupos C10 e C30, o retorno da sensibilidade ocorreu após 15 minutos do término da aplicação. Conclusão: Cinco minutos depois do término da aplicação da crioterapia observou-se ausência de sensibilidade tátil, independentemente do tempo de intervenção. O retorno da sensibilidade normal foi observado depois de 10 minutos quando se aplicou o frio por 20 minutos, e depois de 15 minutos quando aplicado por 10 ou 30 minutos.

Background and objectives: Cryotherapy is a treatment modality with several therapeutic effects, of low cost and easy to apply and access. This study aimed to observing whether there are changes in sensitivity according to cryotherapy application time, in addition to skin sensitivity behavior after treatment. Methods: Participated in the study 21 individuals (14 females and 7 males, mean age 23.8±4 years) who were randomly distributed in three groups with 7 individuals each. Groups received cryotherapy application for 10, 20 or 30 minutes and were called groups C10, C20 and C30, respectively. All participants were previously submitted to skin sensitivity evaluation by Semmes-Weinstein monofilament and were evaluated immediately after cryotherapy application, 5, 10 and 15 minutes after application. Data were analyzed with Friedman's test complemented by multiple comparisons post-test (Dunn's post hoc). Results: All individuals had hypoesthesia in the evaluation immediately after cryotherapy application. There has been significant difference in sensitivity recovery of group C20 as compared to C10 and C30 10 minutes after the intervention (p=0.0498). For groups C10 and C30, sensitivity has returned 15 minutes after the end of application. Conclusion: There has been lack of tactile sensitivity five minutes after the end of application, regardless of intervention time. Normal sensitivity recovery was observed after 10 minutes when cold was applied for 20 minutes, and after 15 minutes when cold was applied for 10 or 30 minutes.

Efecto de la estimulación eléctrica neural transcutánea (TENS) a nivel lumbar segmentario / Effect of transcutaneous electrical neural stimulation (TENS) at lumbar segmental

En lo referente a agentes físicos utilizados en kinesiología, la electroestimulación transcutánea (TENS) es muy utilizada para tratar, entre otros, problemas musculares, edemas y procesos dolorosos. El siguiente estudio tiene como propósito determinar los efectos hipoestésicos de la aplicación de TENS a nivel medular segmentario sobre las extremidades inferiores. Para el desarrollo del estudio se seleccionaron por conveniencia 14 estudiantes de la Facultad de Medicina de la Universidad de Chile (18-24 años), que fueron divididos en dos grupos aleatoriamente, uno control y otro experimental. Para ambos grupos se determinó el umbral de presión inicial mediante un algómetro de presión en el músculo cuádriceps de la extremidad inferior izquierda, luego el grupo experimental fue estimulado con TENS en el nivel lumbar correspondiente (L3-L4), mientras en el grupo control se simuló una situación similar sin paso de corriente. Finalmente, se midió nuevamente el umbral de presión en ambos grupos mediante el método inicial. Los resultados mostraron que existe una diferencia significativa (p=0,001) entre el umbral de presión previo y posterior a la aplicación de TENS en el grupo experimental, a diferencia del grupo control, que no mostró diferencias significativas (p=0,140), por lo que se demuestra el efecto hipoestésico que genera en las extremidades la aplicación de electroestimulación en el nivel lumbar correspondiente. Lo anterior resultaría de gran utilidad en la aplicación de TENS en pacientes con trastornos músculoesqueléticos, evitando el contacto con la zona lesionada, que puede presentar dolor, hiperalgesia o alodinia...

Concerning the physical agents utilized in physical therapy, transcutaneous electric nerve stimulation (TENS) is commonly used to treat muscular problems, edemas and painful processes, among others. The following study is aimed at determining the hypoesthesia effects’s of TENS application at a segmental medullary level, on the lower limbs. To develop the study, fourteen students (aged 18 and 24 years old) from the Medicine Faculty were chosen by convenience. They were divided at random into two groups: one for control and the other experimental. For both groups initial pressure threshold was determined through a pressure algometer on the lower left extremity’s quadriceps muscle. Then the experimental group was stimulated with TENS on the corresponding lumbar level (L3, L4). In the meantime, in the control group a similar situation was simulated, without current flow. Finally, the pressure threshold was measured again in both groups through the initial method. The results showed that there is a significant difference (p=0,001) between the pressure threshold occurring before, and after the TENS application in the experimental group. On the contrary, the group control didn’t show any significant difference (p=0,140). Therefore, this shows the hypoesthesia effect’s generated in the limbs by the electrostimulation on the corresponding lumbar level. This would be very useful in the TENS application on patients suffering from muscle-skeletal disorder, thus avoiding the contact with injured zone, which can present pain, hyperalgesia, or allodynia...

Hipoestesia, dor e incapacidade no membro superior após radioterapia adjuvante no tratamento para câncer de mama / Hypoesthesia, pain and disability of upper limb after adjuvant radiotherapy for breast cancer

JUSTIFICATIVA E OBJETIVOS: Tratamento cirúrgico e radioterapia (RT) podem provocar dor no membro superior (MS), distúrbio funcional e prejuízo nas atividades de vida diária. O objetivo deste estudo foi avaliar e comparar a sensibilidade superficial (SS) no dermátomo correspondente ao nervo sensitivo intercostobraquial (NICB), a dor e a incapacidade do MS homolateral à cirurgia antes e após RT adjuvante. MÉTODO: Vinte mulheres submetidas à cirurgia incluindo linfadenectomia axilar (LA) foram avaliadas antes e imediatamente após a RT adjuvante (25-30 sessões). Para avaliar a SS, dor e incapacidade foram utilizadas: a estesiometria, o Questionário de Dor McGill (MPQ) e o Índice de Dor e Incapacidade no ombro (SPADI). Duas medidas foram obtidas através do MPQ: número de palavras escolhidas (NWC) e índice de dor (PRI). Para comparação intragrupo, adotou-se teste de Wilcoxon Signed Rank Test para amostras pareadas, p < 0,05. RESULTADOS: Após a RT houve redução significativa da SS pelo aumento da pressão exercida pelo estesiômetro de 1,9 ± 0,2 para 2,8 ± 0,2 (p = 0,004) indicando hipoestesia. No MS contralateral não houve diferença. Escores do NWC e do PRI aumentaram significativamente (p = 0,005 e p = 0,006) após a RT. Observou-se aumento significativo do escore total do SPADI após a RT (p = 0,0001), com aumento da incapacidade de 24,6 ± 5,7 para 39,2 ± 5,7 (p = 0,001) e a dor de 26,3 ± 6,4 para 48,4 ± 7,1 (p = 0,001). CONCLUSÃO: Foi identificada hipoestesia no trajeto do NICB, dor e incapacidade no MS após a RT adjuvante.

BACKGROUND AND OBJECTIVES: Surgery and radiotherapy (RT) may induce upper limb (UP) pain, functional disorder and daily life activities impairment. This study aimed at evaluating and comparing superficial sensitivity (SS) on the dermatome corresponding to the intercostobrachial sensory nerve (ICBN), pain and disability of UL ipsilateral to surgery before and after adjuvant RT. METHOD: Twenty females submitted to surgery including axillary lymphadenectomy (AL) were evaluated before and immediately after adjuvant RT (25-30 sessions). The following tools were used to evaluate SS, pain and disability: esthesiometry, McGill Pain Questionnaire (MPQ), Pain Rating Index and shoulder disability (SPADI). Two measures were obtained from MPQ: number of words chosen (NWC) and pain rating index (PRI). Wilcoxon Signed Rank Test for paired samples was used for intragroup comparison, considering significant p < 0.05. RESULTS: There has been significant SS decrease after RT by increased esthesiometer pressure from 1.9 ± 0.2 to 2.8 ± 0.2 (p = 0.004) indicating hypoesthesia. There has been no difference in contralateral UL. NWC and PRI scores have significantly increased (p = 0.005 and p = 0.006) after RT. There has been significant total SPADI score increase after RT (p = 0.0001), with increased disability from 24.6 ± 5.7 to 39.2 ± 5.7 (p = 0.001) and pain from 26.3 ± 6.4 to 48.4 ± 7.1 (p = 0.001). CONCLUSION: Hypoesthesia was identified in the ICBN pathway, in addition to UL pain and disability after adjuvant RT.

A prospective study of 39 patients with trigeminal neuralgia treated with percutaneous balloon compression / Estudo prospectivo de 39 pacientes com neuralgia do trigêmeo tratados com compressão por balão percutâneo

OBJECTIVE: Trigeminal neuralgia is the most common facial pain. It may be treated with percutaneous balloon compression (PBC), which is considered to be a safe and efficient procedure. The purpose of this study was to review our results with PBC and to assess the factors influencing the outcome. METHOD: A multivariate analysis was used to study 39 patients during a 50-month postoperative period. RESULTS: There was predominance of the female gender (54 percent), the right side of the face (84 percent) and V2V3 roots of trigeminal nerve (33 percent). The mean age was 62.3 years. No major complications or deaths occurred. Among all variables, postoperative hypoesthesia was the single prognostic factor capable of positively influencing the results (p=0.02). Most patients (80 percent) were pain-free after 50 months with a 90 percent satisfaction rate. CONCLUSION: PBC was a safe procedure with low morbidity, no mortality, high approval ratings, and was an important improving on patients' quality of life.

OBJETIVO: A neuralgia do trigêmeo é a dor facial mais comum. Ela pode ser tratada através da compressão percutânea com balão, que é considerado procedimento seguro e eficaz. A proposta deste estudo foi avaliar nossos resultados e os fatores que influenciariam o seguimento. MÉTODO: Foi utilizada análise multivariada para estudar 39 pacientes submetidos ao procedimento, com seguimento de 50 meses. RESULTADOS: Houve predominância do sexo feminino (54 por cento), lado direito (84 por cento) e dos ramos V2V3 (33 por cento). A idade média foi de 62,3 anos. Não houve complicações maiores ou óbito. Dentre todas as variáveis, a única capaz de influenciar positivamente os resultados foi a hipoestesia pós-operatória (p=0,02). A maioria dos pacientes (80 por cento) estava livre da dor após 50 meses de seguimento, com 90 por cento de satisfação. CONCLUSÃO: Este procedimento foi considerado seguro, com baixa morbidade, sem mortalidade, com alta taxa de aprovação e representou melhora importante na qualidade de vida dos pacientes.

Absence of the musculocutaneous nerve: a rare anatomical variation with possible clinical-surgical implications / Ausência do nervo musculocutâneo: uma rara variação anatômica com possíveis implicações clínico-cirúrgicas

CONTEXT: The musculocutaneous nerve is one of the terminal branches of the lateral fasciculus of the brachial plexus, and is responsible for innervation of the flexor musculature of the elbow and for skin sensitivity on the lateral surface of the forearm. Its absence has been described previously, but its real prevalence is unknown. CASE REPORT: A case of absence of the musculocutaneous nerve that was observed during the dissection of the right arm of a male cadaver is described. The area of innervation was supplied by the median nerve. From this, three branches emerged: one to the coracobrachialis muscle, another to the biceps brachii muscle and the third to the brachialis muscle. This last branch continued as a lateral antebrachial cutaneous nerve. This is an anatomical variation that has clinical-surgical implications, considering that injury to the median nerve in this case would have caused unexpected paralysis of the flexor musculature of the elbow and hypoesthesia of the lateral surface of the forearm.

CONTEXTO: O nervo musculocutâneo é um dos ramos terminais do fascículo lateral do plexo braquial, sendo responsável pela inervação da musculatura flexora do cotovelo e pela sensibilidade cutânea da face lateral do antebraço. Sua ausência já foi descrita previamente, mas a sua real prevalência é desconhecida. RELATO DE CASO: Este é um relato de caso da ausência do nervo musculocutâneo observada durante a dissecção do membro superior direito de um cadáver do sexo masculino, sendo o seu território de inervação suprido pelo nervo mediano. Deste emergiam três ramos, um para o músculo coracobraquial, outro para o músculo bíceps braquial e o terceiro para o músculo braquial. Este último ramo continuava-se como nervo cutâneo lateral do antebraço. Trata-se de variação anatômica que tem implicações clínico-cirúrgicas, já que a lesão do nervo mediano, neste caso, acarretaria inesperada paralisia da musculatura flexora do cotovelo e hipoestesia da face lateral do antebraço.