Sumario ejecutivo de las recomendaciones SEPAR de diagnóstico y tratamiento del cáncer de pulmón de células no pequeñas / Executive summary of the SEPAR recommendations for the diagnosis and treatment of non-small cell lung cancer

La Sociedad Española de Neumología y Cirugía Torácica (SEPAR), a través de las áreas de Cirugía Torácica y de Oncología Torácica, ha promovido la realización de un manual de recomendaciones para el diagnóstico y el tratamiento del cáncer de pulmón de células no pequeñas. Las elevadas incidencia y mortalidad de esta patología hacen necesaria una constante actualización de las mejores evidencias científicas para su consulta por parte de los profesionales de la salud. Para su confección se ha contado con un amplio grupo de profesionales de distintas especialidades que han elaborado una revisión integral, que se ha concretado en 4 apartados principales. En el primero se ha estudiado la prevención y el cribado de la enfermedad, incluyendo los factores de riesgo, el papel de la deshabituación tabáquica y el diagnóstico precoz mediante programas de cribado. En un segundo apartado se ha analizado la presentación clínica, los estudios de imagen y el riesgo quirúrgico, incluyendo el cardiológico y la evaluación funcional respiratoria. Un tercero trata sobre los estudios de confirmación cito-histológica y de estadificación, con un análisis de las clasificaciones TNM e histológica, métodos no invasivos y mínimamente invasivos, así como las técnicas quirúrgicas para el diagnóstico y estadificación. En un cuarto y último capítulo se han abordado aspectos del tratamiento, como el papel de las técnicas quirúrgicas, la quimioterapia, la radioterapia, el abordaje multidisciplinar por estadios y otros tratamientos dirigidos frente a dianas específicas, terminando con recomendaciones acerca del seguimiento del cáncer de pulmón y los tratamientos paliativos quirúrgicos y endoscópicos en estadios avanzados

The Thoracic Surgery and Thoracic Oncology groups of the Spanish Society of Pulmonology and Thoracic Surgery (SEPAR) have backed the publication of a handbook on recommendations for the diagnosis and treatment of non-small cell lung cancer. Due to the high incidence and mortality of this disease, the best scientific evidence must be constantly updated and made available for consultation by healthcare professionals. To draw up these recommendations, we called on a wide-ranging group of experts from the different specialties, who have prepared a comprehensive review, divided into 4 main sections. The first addresses disease prevention and screening, including risk factors, the role of smoking cessation, and screening programs for early diagnosis. The second section analyzes clinical presentation, imaging studies, and surgical risk, including cardiological risk and the evaluation of respiratory function. The third section addresses cytohistological confirmation and staging studies, and scrutinizes the TNM and histological classifications, non-invasive and minimally invasive sampling methods, and surgical techniques for diagnosis and staging. The fourth and final section looks at different therapeutic aspects, such as the role of surgery, chemotherapy, radiation therapy, a multidisciplinary approach according to disease stage, and other specifically targeted treatments, concluding with recommendations on the follow-up of lung cancer patients and surgical and endoscopic palliative interventions in advanced stages

Executive summary of the SEPAR recommendations for the diagnosis and treatment of non-small cell lung cancer. / Sumario ejecutivo de las recomendaciones SEPAR de diagnóstico y tratamiento del cáncer de pulmón de células no pequeñas.

The Thoracic Surgery and Thoracic Oncology groups of the Spanish Society of Pulmonology and Thoracic Surgery (SEPAR) have backed the publication of a handbook on recommendations for the diagnosis and treatment of non-small cell lung cancer. Due to the high incidence and mortality of this disease, the best scientific evidence must be constantly updated and made available for consultation by healthcare professionals. To draw up these recommendations, we called on a wide-ranging group of experts from the different specialties, who have prepared a comprehensive review, divided into 4 main sections. The first addresses disease prevention and screening, including risk factors, the role of smoking cessation, and screening programs for early diagnosis. The second section analyzes clinical presentation, imaging studies, and surgical risk, including cardiological risk and the evaluation of respiratory function. The third section addresses cytohistological confirmation and staging studies, and scrutinizes the TNM and histological classifications, non-invasive and minimally invasive sampling methods, and surgical techniques for diagnosis and staging. The fourth and final section looks at different therapeutic aspects, such as the role of surgery, chemotherapy, radiation therapy, a multidisciplinary approach according to disease stage, and other specifically targeted treatments, concluding with recommendations on the follow-up of lung cancer patients and surgical and endoscopic palliative interventions in advanced stages.

Recomendaciones SEPAR de diagnostico y tratamiento del cancer de pulmón de celulas no pequeñas / Recommendations of the Spanish Society of Pneumology and Thoracic Surgery on the diagnosis and treatment of non-small-cell lung cancer

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Benchmarking en cirugía torácica. Tercera edición / Benchmarking in Thoracic Surgery. Third Edition

Introducción: Benchmarking hace referencia a la comparación continuada de la eficiencia y la calidad entre productos y actividades con el objetivo fundamental de alcanzar la excelencia. Objetivo: Analizar los resultados del benchmarking realizado en 2013 con la actividad asistencial de Cirugía Torácica en el año 2012 en 17 servicios de Cirugía Torácica españoles participantes. Métodos: La fuente de información para el estudio ha sido el conjunto mínimo básico de datos de hospitalización correspondiente al año 2012. Los datos han sido proporcionados por los centros participantes, a partir de los informes de alta hospitalaria, sin intervención de los responsables de los correspondientes servicios asistenciales. Los casos objeto del estudio han sido todas las altas de hospitalización registradas en los centros participantes. Los episodios incluidos han sido los de enfermedad quirúrgica respiratoria (CDM4-Q) y los del servicio de Cirugía Torácica. La identificación de estos casos se realizó usando los códigos de la novena edición de la Clasificación Internacional de Enfermedades, Modificación Clínica. Para valorar las diferencias en gravedad y complejidad de los casos se ha utilizado la clasificación de los grupos relacionados por el diagnóstico refinados. Resultados: Los diversos parámetros generales estudiados (casuística, estancia media, complicaciones, readmisiones, mortalidad y actividad) han tenido una gran variabilidad entre los participantes. El análisis concreto de intervenciones (lobectomía, neumonectomía, resecciones atípicas y neumotórax), también han oscilado considerablemente. Conclusiones: Se observa, al igual que en ediciones previas, una considerable variabilidad entre los grupos participantes. Existen áreas de mejora evidentes: estandarización de los procesos de admisión, evitando ingresos urgentes y mejorando la estancia preoperatoria; agilización de las altas hospitalarias y mejora de los informes de alta, reflejando toda la actividad y las complicaciones habidas. Algunas unidades de Cirugía Torácica deben hacer una revisión profunda de sus procesos porque pueden tener algunos parámetros con una desviación excesiva de la norma. También deben mejorarse los procesos de codificación de diagnósticos y comorbilidades

Introduction: Benchmarking entails continuous comparison of efficacy and quality among products and activities, with the primary objective of achieving excellence. Objective: To analyze the results of benchmarking performed in 2013 on clinical practices undertaken in 2012 in 17 Spanish thoracic surgery units. Methods: Study data were obtained from the basic minimum data set for hospitalization, registered in 2012. Data from hospital discharge reports were submitted by the participating groups, but staff from the corresponding departments did not intervene in data collection. Study cases all involved hospital discharges recorded in the participating sites. Episodes included were respiratory surgery (Major Diagnostic Category 04, Surgery), and those of the thoracic surgery unit. Cases were labelled using codes from the International Classification of Diseases, 9th revision, Clinical Modification. The refined diagnosis-related groups classification was used to evaluate differences in severity and complexity of cases. Results: General parameters (number of cases, mean stay, complications, readmissions, mortality, and activity) varied widely among the participating groups. Specific interventions (lobectomy, pneumonectomy, atypical resections, and treatment of pneumothorax) also varied widely. Conclusions: As in previous editions, practices among participating groups varied considerably. Some areas for improvement emerge: admission processes need to be standardized to avoid urgent admissions and to improve pre-operative care; hospital discharges should be streamlined and discharge reports improved by including all procedures and complications. Some units have parameters which deviate excessively from the norm, and these sites need to review their processes in depth. Coding of diagnoses and comorbidities is another area where improvement is needed

Benchmarking in Thoracic Surgery. Third Edition.

INTRODUCTION: Benchmarking entails continuous comparison of efficacy and quality among products and activities, with the primary objective of achieving excellence. OBJECTIVE: To analyze the results of benchmarking performed in 2013 on clinical practices undertaken in 2012 in 17 Spanish thoracic surgery units. METHODS: Study data were obtained from the basic minimum data set for hospitalization, registered in 2012. Data from hospital discharge reports were submitted by the participating groups, but staff from the corresponding departments did not intervene in data collection. Study cases all involved hospital discharges recorded in the participating sites. Episodes included were respiratory surgery (Major Diagnostic Category 04, Surgery), and those of the thoracic surgery unit. Cases were labelled using codes from the International Classification of Diseases, 9th revision, Clinical Modification. The refined diagnosis-related groups classification was used to evaluate differences in severity and complexity of cases. RESULTS: General parameters (number of cases, mean stay, complications, readmissions, mortality, and activity) varied widely among the participating groups. Specific interventions (lobectomy, pneumonectomy, atypical resections, and treatment of pneumothorax) also varied widely. CONCLUSIONS: As in previous editions, practices among participating groups varied considerably. Some areas for improvement emerge: admission processes need to be standardized to avoid urgent admissions and to improve pre-operative care; hospital discharges should be streamlined and discharge reports improved by including all procedures and complications. Some units have parameters which deviate excessively from the norm, and these sites need to review their processes in depth. Coding of diagnoses and comorbidities is another area where improvement is needed.

Resultados de la cirugía de resección pulmonar sobre pulmón único / Outcomes of pulmonary resection in single-lung patients

INTRODUCCIÓN: La aparición de una nueva lesión pulmonar, bien un tumor metacrónico o una recidiva, en pacientes neumonectomizados plantea un reto terapéutico, en el que la cirugía en muchas ocasiones se considera contraindicada. El objetivo de nuestro estudio es valorar la morbimortalidad de la cirugía de resección pulmonar sobre pulmón único. MÉTODOS: Revisamos a todos los pacientes a los que se les realizó una neumonectomía y presentaron una nueva lesión en el pulmón remanente entre 1994 y 2012. RESULTADOS: La serie consta de 12 pacientes (10 varones y 2 mujeres) con una edad media de 71 años (54-81 años). El FEV1 medio fue de 1.470 ml (54,2%) y la CVF de 2.153 ml (61,5%). Tras una mediana de 34,5 meses se les intervino de una segunda lesión en el pulmón contralateral, realizándose en todos los casos resecciones pulmonares atípicas. La anatomía patológica mostró metástasis de tumor primario pulmonar en 2 pacientes; tumor metacrónico, en 6 pacientes; metástasis de carcinoma de origen extratorácico, en 3 pacientes y nódulo benigno en un paciente. Se registraron complicaciones en 4 pacientes (33,4%): arritmia cardíaca en 2 pacientes e insuficiencia respiratoria en otros 2 pacientes. No hubo ningún fallecimiento postoperatorio. CONCLUSIÓN: La resección pulmonar sobre pulmón único es un procedimiento seguro con una aceptable morbimortalidad, en la que es de gran importancia una meticulosa selección de los pacientes

BACKGROUND: After pneumonectomy, the development of a new lung cancer or a recurrence in the residual lung is a challenge. Surgery often is considered contraindicated. The goal of our study is to assess the morbidity and mortality of lung resection on a single lung. METHODS: All patients who underwent lung resection after pneumonectomy from January 1996 through December 2012 were reviewed. RESULTS: There were 12 patients (10 men and 2 women). Mean age was 71 years (range, 54-81 years). Mean preoperative FEV1 was 1470 ml (52%) and preoperative FVC 2153 ml (61,5%). Subsequent pulmonary resection was performed after a median follow-up of 34,5 months. Wedge resection was performed in all patients. Diagnosis was pulmonary mestastatic lung cancer in 2 patients, metachronous lung cancer in 6, metastatic extrathoracic cancer in 3 and benign nodule in one. Complications occurred in 4 patients (33,4%) while operative mortality was nil. CONCLUSIONS: Lung resection on a single lung is a safe procedure associated with acceptable morbidity and mortality. Careful patient selection is very important

Outcomes of pulmonary resection in single-lung patients.

BACKGROUND: After pneumonectomy, the development of a new lung cancer or a recurrence in the residual lung is a challenge. Surgery often is considered contraindicated. The goal of our study is to assess the morbidity and mortality of lung resection on a single lung. METHODS: All patients who underwent lung resection after pneumonectomy from January 1996 through December 2012 were reviewed. RESULTS: There were 12 patients (10 men and 2 women). Mean age was 71 years (range, 54-81 years). Mean preoperative FEV1 was 1,470 ml (52%) and preoperative FVC 2,153 ml (61,5%). Subsequent pulmonary resection was performed after a median follow-up of 34,5 months. Wedge resection was performed in all patients. Diagnosis was pulmonary mestastatic lung cancer in 2 patients, metachronous lung cancer in 6, metastatic extrathoracic cancer in 3 and benign nodule in one. Complications occurred in 4 patients (33,4%) while operative mortality was nil. CONCLUSIONS: Lung resection on a single lung is a safe procedure associated with acceptable morbidity and mortality. Careful patient selection is very important.

Morbidity and mortality in a large series of surgical patients with pulmonary metastases of colorectal carcinoma: a prospective multicentre Spanish study (GECMP-CCR-SEPAR).

OBJECTIVE: Little information is available on postoperative morbidity and mortality after pulmonary metastasectomy. We describe the postoperative morbidity and mortality in a large multicentre series of patients after a first surgical procedure for pulmonary metastases of colorectal carcinoma (CRC) and identify the pre- and intraoperative variables influencing the clinical outcome. METHODS: A prospective, observational and multicentre study was conducted. Data were collected from March 2008 to February 2010. Patients were grouped into Groups A and B according to the presence or absence of postoperative complications. Variables in both groups were compared by univariate and multivariate analyses. P-values of <0.05 were considered statistically significant. RESULTS: A total of 532 patients (64.5% males) from 32 hospitals were included. The mean (SD) ages of both study groups were similar [68 (10) vs 67 (10) years, P = NS). A total of 1050 lung resections were performed (90% segmentectomies or wedge, n = 946 and 10% lobectomies or greater, n = 104). Group A included 83 (15.6%) patients who developed a total of 100 complications. These included persistent air leaks in 18, atelectasis in 13, pneumonia in 13, paralytic ileum in 12, arrhythmia in 9, acute respiratory distress syndrome in 4 and miscellanea in 31. Reoperation was performed in 5 (0.9%) patients due to persistent air leaks in 4 and lung ischaemia in 1. The mortality rate was 0.4% (n = 2). Causes of death were sepsis in 1 patient and ventricular fibrillation in 1. In the multivariate analysis, lobectomy or greater lung resection [odds ration (OR) 1.9, 95% confidence interval (95% CI) 1.04-3.3, P = 0.03], respiratory co-morbidity (OR 2.3, 95% CI 1.1-4.6, P = 0.01) and cardiovascular co-morbidity (OR 2, 95% CI 1-3.8, P = 0.02) were independent risk factors for postoperative morbidity. Video-assisted surgery vs thoracotomy showed a protective effect (OR 0.3, 95% CI 0.1-0.8, P = 0.01). CONCLUSIONS: The first episode of lung surgery for pulmonary metastases of CRC was associated with very low mortality and reoperation rates (<1%). The postoperative morbidity rate was 16%. Independent risk factors of postoperative morbidity were major lung resection and respiratory and/or cardiovascular co-morbidity. Video-assisted surgery showed a protective effect.

Cordoma condroide de localización atípica / Chondroid Chordoma in an Atypical Location

El cordoma condroide de localización vertebral torácica es un tipo de tumor que constituye una auténtica rareza. La incidencia anual del cordoma condroide se cifra en 0,1/100.000 habitantes, y la afectación torácica se aprecia en el 2 al 5% de los casos. Su diagnóstico definitivo se ve complicado por su semejanza con otros tumores como los condrosarcomas, por lo que es preciso acudir al estudio inmunohistoquímico.Su capacidad de recidiva y la tendencia a la malignización a pesar de su naturaleza de lento crecimiento provocan que su tratamiento, predominantemente quirúrgico, sea de una complejidad nada desdeñable. Su comportamiento evolutivo tan agresivo está siendo motivo de estudio a nivel molecular y genético para la elaboración de nuevas terapias oncológicas médicas con el fin de complementar la cirugía y la radioterapia, cuando estas sean aplicables. Se presenta un caso de localización torácica vertebral e intrapleural, así como el tratamiento practicado (AU)

Chondroid chordoma is an extremely rare tumour with an annual incidence of around 0.1 cases per 100 000 population. Involvement of the thoracic vertebrae may be present in 2%–5% of cases. Definitive diagnosis usually requires a suitable distinction between this and other mesenchymal tumours such as chondrosarcomas, so immunohistochemical analysis is virtually mandatory. In spite of its slow-growing nature, chondroid chordoma tends to relapse, and it may eventually become malignant, often jeopardising the patient's prognosis. Although surgery remains the main therapeutic approach, research into the molecular and genetic aspects of this tumour is ongoing. These new advances are likely to improve future oncology therapies by complementing surgery and radiotherapy, changing the currently poor prognosis.We report the case of a patient with a chondroid chordoma involving the thoracic vertebrae and pleural cavity, and the treatment performed (AU)

Chondroid chordoma in an atypical location.

Chondroid chordoma is an extremely rare tumour with an annual incidence of around 0.1 cases per 100,000population. Involvement of the thoracic vertebrae may be present in 2-5% of cases. Definitive diagnosis usually requires a suitable distinction between this and other mesenchymal tumours such as chondrosarcomas, so immunohistochemical analysis is virtually mandatory. In spite of its slow-growing nature, chondroid chordoma tends to relapse, and it may eventually become malignant, often jeopardising the patient's prognosis. Although surgery remains the main therapeutic approach, research into the molecular and genetic aspects of this tumour is ongoing. These new advances are likely to improve future oncology therapies by complementing surgery and radiotherapy, changing the currently poor prognosis. We report the case of a patient with a chondroid chordoma involving the thoracic vertebrae and pleural cavity, and the treatment performed.

Carcinoide tímico asociado a síndrome de neoplasia endocrina múltiple tipo I / Thymic Carcinoid Associated With Multiple Endocrine Neoplasia Syndrome Type I

Los carcinoides tímicos son una entidad poco frecuente que puede asociarse a enfermedades endocrinológicas como el síndrome de Cushing o el síndrome de neoplasia endocrina múltiple tipo I (MEN1). Suponen el 4% de los tumores del mediastino anterior y se caracterizan por tener un comportamiento muy agresivo. Presentamos el caso de un paciente diagnosticado de síndrome MEN1 a quien durante el seguimiento de su enfermedad se detectó una imagen torácica compatible con carcinoide tímico. Tras intervenirle quirúrgicamente mediante timectomía ampliada a grasa peritímica, se confirmó el diagnóstico clínico. A los 14 meses de seguimiento se halló en las pruebas de imagen una lesión sospechosa de recidiva local, motivo por el que fue reintervenido. El informe anatomopatológico de dicha intervención fue de fibrosis rádica. Así mismo, presentamos una revisión del manejo diagnóstico y terapéutico actual en pacientes con síndrome MEN1 diagnosticados de carcinoide tímico(AU)

Thymic carcinoids are a rare entity that may be associated with endocrine diseases like Cushing's syndrome or multiple endocrine neoplasia syndrome type I (MEN1). These tumors represent 4% of anterior mediastinal tumors and are characterized by their very aggressive behavior. We present the case of a patient with a previous MEN 1 diagnosis in whom, during the follow up of his disease, a thoracic image compatible with thymic carcinoid was detected. After an extended thymectomy that included peri-thymic fat resection, the clinical diagnosis was confirmed. A follow-up examination 14 months later revealed a suspicious lesion that suggested local recurrence, therefore the patient was reoperated on. The pathology report of this surgery indicated post-radiation fibrosis. Likewise, we present a review of the current diagnostic and therapeutic management of patients with MEN1 syndrome who are diagnosed with thymic carcinoid(AU)

Thymic carcinoid associated with multiple endocrine neoplasia syndrome type I.

Thymic carcinoids are a rare entity that may be associated with endocrine diseases like Cushing's syndrome or multiple endocrine neoplasia syndrome type I (MEN1). These tumors represent 4% of anterior mediastinal tumors and are characterized by their very aggressive behavior. We present the case of a patient with a previous MEN 1 diagnosis in whom, during the follow up of his disease, a thoracic image compatible with thymic carcinoid was detected. After an extended thymectomy that included peri-thymic fat resection, the clinical diagnosis was confirmed. A follow up examination 14 months later revealed a suspicious lesion that suggested local recurrence, therefore the patient was reoperated on. The pathology report of this surgery indicated post-radiation fibrosis. Likewise, we present a review of the current diagnostic and therapeutic management of patients with MEN1 syndrome who are diagnosed with thymic carcinoid.

Tumor del seno endodérmico primario de pulmón. Una rara entidad anatomopatológica / Pulmonary Pure Yolk-Sac Tumor. A Rare Anatomopathological Entity

La localización intratorácica más frecuente para los tumores germinales no metastáticos, es el mediastino anterior. Los tumores de células germinales primarios de pulmón son una excepción en la literatura limitándose a algunos casos de coriocarcinomas y raros casos de tumores del seno endodérmico. En este artículo, se presenta un caso de tumor del seno endodérmico primario de pulmón de características atípicas en cuanto a la manera de diagnostico y al tratamiento practicado(AU)

The most frequent location for non-metastatic germ cell tumors is the anterior mediastinum. Primary lung germ cell tumors are an exception in medical literature being limited to just a few cases of choriocarcinomas and rare cases of yolk-sac tumors. In this paper, we report a case of a pulmonary yolk-sac tumor with atypical characteristic as regards its diagnosis and treatment(AU)

Guidelines on surgery of the thoracic sympathetic nervous system.

Thoracic sympathetic nervous system (TSNS) surgery has increased in importance in the last few years, generating great expectations among the general population and the scientific community. This has been due to the excellent results obtained by videothoracoscopy-assisted thoracic sympathectomy in the treatment of essential hyperhidrosis and other TSNS disorders. This minimally invasive surgical technique has been shown to be effective, and with a low morbidity it is accepted as one of the best therapeutic options for the treatment of palmar and bilateral axillary hyperhidrosis and the number of patients consulting with the intention of having the operation has increased considerably. Although compensatory sweating, which is occasionally intense, often occurs after the surgery, this and other secondary effects of the technique are well tolerated by patients. The current evidence on TSNS and the treatment of essential hyperhidrosis is based on observational studies, making it difficult to compare series and draw conclusions. There has been much discussion on standardising the technique, defining the most favourable levels for clipping, and choosing the type of denervation with least secondary effects. This has led to the need to draw up these guidelines which should clarify and standardise the criteria for managing patients with disorders of TSNS.

Normativa sobre Cirugía del Sistema Nervioso Simpático Torácico / Guidelines on Surgery of the Thoracic Sympathetic Nervous System

La cirugía del sistema nervioso simpático torácico (SNST) ha experimentado un gran auge en los últimos años, generando gran expectación entre la población general y la comunidad científica. Esto se ha debido a los excelentes resultados que ha obtenido la simpatectomía torácica por videotoracoscopia en el tratamiento de la hiperhidrosis esencial y en otros trastornos del SNST.Esta técnica de cirugía mínimamente invasiva ha demostrado ser efectiva y con baja morbilidad, aceptada como una de las mejores opciones terapéuticas para el tratamiento de la hiperhidrosis palmar y axilar bilateral, viéndose incrementado de manera considerable el número de pacientes que consultan con intención de operarse.Aunque la sudoración compensadora, intensa en ocasiones, aparece con gran frecuencia tras la cirugía, éste y otros efectos secundarios de la técnica son bien tolerados por los pacientes.La evidencia actual respecto a la cirugía del SNST y del tratamiento de la hiperhidrosis esencial se basa en estudios observacionales, haciendo difícil comparar series y extraer conclusiones. Se ha discutido mucho para unificar la técnica, definir los niveles de sección más favorables y elegir el tipo de denervación con menos efectos secundarios. Este hecho crea la necesidad de elaborar esta normativa que clarifique y unifique criterios para el manejo de los pacientes con trastornos del SNST(AU)

Thoracic sympathetic nervous system (TSNS) surgery has increased in importance in the last few years, generating great expectations among the general population and the scientific community. This has been due to the excellent results obtained by videothoracoscopy-assisted thoracic sympathectomy in the treatment of essential hyperhidrosis and other TSNS disorders.This minimally invasive surgical technique has been shown to be effective, and with a low morbidity it is accepted as one of the best therapeutic options for the treatment of palmar and bilateral axillary hyperhidrosis and the number of patients consulting with the intention of having the operation has increased considerably.Although compensatory sweating, which is occasionally intense, often occurs after the surgery, this and other secondary effects of the technique are well tolerated by patients.The current evidence on TSNS and the treatment of essential hyperhidrosis is based on observational studies, making it difficult to compare series and draw conclusions. There has been much discussion on standardising the technique, defining the most favourable levels for clipping, and choosing the type of denervation with least secondary effects. This has led to the need to draw up these guidelines which should clarify and standardise the criteria for managing patients with disorders of TSNS(AU)

Pulmonary pure yolk-sac tumor. A rare anatomopathological entity.

The most frequent location for non-metastatic germ cell tumors is the anterior mediastinum. Primary lung germ cell tumors are an exception in medical literature being limited to just a few cases of choriocarcinomas and rare cases of yolk-sac tumors. In this paper, we report a case of a pulmonary yolk-sac tumor with atypical characteristic as regards its diagnosis and treatment.