Carcinoma de células de Merkel: diagnóstico y tratamiento en atención especializada dermatológica. Guía de práctica clínica de la Academia Española de Dermatología y Venerología / Diagnosis and Treatment of Merkel Cell Carcinoma in Specialized Dermatology Units: A Clinical Practice Guideline of the Spanish Academy of Dermatology and Venereology

Antecedentes y objetivo: El carcinoma de células de Merkel es un tipo de cáncer de piel infrecuente y agresivo. Hay una gran variación en su manejo y las diferentes guías extranjeras que existen cubren parcialmente los problemas identificados como principales. El objetivo de la presente guía es servir de referencia a los dermatólogos españoles para mejorar aspectos controvertidos del diagnóstico, estadificación y tratamiento del carcinoma de células de Merkel. Materiales y métodos: Se empleó el método ADAPTE: se escogió a miembros del Grupo Español de Dermato-Oncología y Cirugía (GEDOC) con experiencia en el tratamiento de estos tumores y con interés en participar en la elaboración de la guía. Tras resumir el proceso de atención y elaborar las preguntas clínicas relevantes, se hizo una búsqueda de guías, que se seleccionaron según su puntuación mediante el instrumento Appraisal of Guidelines for Research and Evaluation (AGREE II). Tras la búsqueda de las respuestas en dichas guías, se elaboraron posteriormente las recomendaciones. Por último, se sometió la guía a revisión externa. Resultados: Las guías con mejor puntuación fueron las de National Comprehensive Cancer Network, la European consensus-based interdisciplinary guideline, Alberta Healthservices Clinical practice guideline, American Cancer Society y Cutaneous Oncology Group of the French Society of Dermatology. Se obtuvieron en total 9 preguntas clínicas, contestadas a partir de estas guías. Conclusiones: Esta guía responde a preguntas habituales en la práctica clínica diaria y sirve a los dermatólogos como referencia en la toma de decisiones, siempre teniendo presentes los recursos y preferencias del paciente

Background and objective: Merkel cell carcinoma is a rare, aggressive skin cancer that is managed in a great variety of ways. However, international clinical practice guidelines give only partial coverage to issues considered major problems.The recommendations presented here aim to provide Spanish dermatologists with a guide to improving disputed aspects of diagnosis, staging, and treatment of localized Merkel cell carcinomas. Material and methods: The ADAPTE process was used. Members of the Spanish Group of Oncologic Dermatology and Surgery (GEDOC) with experience in treating Merkel cell carcinoma and interest in drafting these guidelines were selected. The group described the care process and listed the most important clinical questions. They then searched for guidelines and assessed them with the AGREE II (Appraisal of Guidelines for Research and Evaluation) tool. After consulting the guidelines for answers to their clinical questions, the group drafted the present statementand sent it for external review. Results: The guidelines that scored highest in the AGREE II assessment step were the consensus-based interdisciplinary guideline of the European Association of Dermato-Oncology and the European Organization of Research and Treatment of Cancer, and those of the Comprehensive Cancer Network, the Alberta Health Services in Canada, the American Cancer Society, and the Cutaneous Oncology Group of the French Society of Dermatology. A total of 9 clinical questions were answered based on these guidelines. Conclusions: The guidelines presented here answer clinical questions that arise in routine practice. They can provide dermatologists with a starting point for decision-making, although available resources and patient preferences must always be borne in mind

Diagnosis and Treatment of Merkel Cell Carcinoma in Specialized Dermatology Units: A Clinical Practice Guideline of the Spanish Academy of Dermatology and Venereology. / Carcinoma de células de Merkel: diagnóstico y tratamiento en atención especializada dermatológica. Guía de práctica clínica de la Academia Española de Dermatología y Venerología.

BACKGROUND AND OBJECTIVE: Merkel cell carcinoma is a rare, aggressive skin cancer that is managed in a great variety of ways. However, international clinical practice guidelines give only partial coverage to issues considered major problems.The recommendations presented here aim to provide Spanish dermatologists with a guide to improving disputed aspects of diagnosis, staging, and treatment of localized Merkel cell carcinomas. MATERIAL AND METHODS: The ADAPTE process was used. Members of the Spanish Group of Oncologic Dermatology and Surgery (GEDOC) with experience in treating Merkel cell carcinoma and interest in drafting these guidelines were selected. The group described the care process and listed the most important clinical questions. They then searched for guidelines and assessed them with the AGREE II (Appraisal of Guidelines for Research and Evaluation) tool. After consulting the guidelines for answers to their clinical questions, the group drafted the present statementand sent it for external review. RESULTS: The guidelines that scored highest in the AGREE II assessment step were the consensus-based interdisciplinary guideline of the European Association of Dermato-Oncology and the European Organization of Research and Treatment of Cancer, and those of the Comprehensive Cancer Network, the Alberta Health Services in Canada, the American Cancer Society, and the Cutaneous Oncology Group of the French Society of Dermatology. A total of 9 clinical questions were answered based on these guidelines. CONCLUSIONS: The guidelines presented here answer clinical questions that arise in routine practice. They can provide dermatologists with a starting point for decision-making, although available resources and patient preferences must always be borne in mind.

Colgajo de keystone tipo i / Type I Keystone Island Flap

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Grupos de trabajo: pilares científicos de la Academia Española de Dermatología y Venereología / Working Groups: pilars of Science Within the Spanish Academy of Dermatology and Venereology

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Colgajos cutáneos para la resolución de múltiples tumores próximos adyacentes / Skin Flaps for the Repair of Multiple Adjacent Tumors

En la práctica diaria, es frecuente que el cirujano dermatológico deba extirpar varias lesiones tumorales próximas entre sí en la región facial. Para ello, es importante planificar una técnica reconstructiva adecuada que permita, si es posible, abordar las lesiones en un solo acto quirúrgico, proporcionando buenos resultados funcionales y estéticos. A continuación se presentan 5 casos de pacientes en los que se ha empleado un único colgajo para realizar el cierre de varios defectos próximos

In daily clinical practice, the dermatologic surgeon frequently has to excise closely adjacent tumors in the facial region. In such cases, planning of an appropriate reconstruction technique is essential. The aim is to treat all of the lesions in a single surgical intervention, if possible, and to achieve a good functional and cosmetic outcome. We present 5 patients in whom a single flap was used to repair multiple adjacent defects

Skin Flaps for the Repair of Multiple Adjacent Tumors.

In daily clinical practice, the dermatologic surgeon frequently has to excise closely adjacent tumors in the facial region. In such cases, planning of an appropriate reconstruction technique is essential. The aim is to treat all of the lesions in a single surgical intervention, if possible, and to achieve a good functional and cosmetic outcome. We present 5 patients in whom a single flap was used to repair multiple adjacent defects.

Reconstrucción de defectos quirúrgicos en la comisura oral / Reconstruction of Surgical Defects of the Labial Commissure

La misión principal de la cirugía dermatológica oncológica es la extirpación completa del tumor cutáneo. Tras ello se procederá a la reconstrucción del defecto intentando preservar la funcionalidad y la estética. Al nivel de las comisuras se entrecruzan las fibras del músculo orbicular de los labios superior e inferior, y el bermellón se inserta en el modiolo, una compleja estructura con forma de cono. La reconstrucción de la comisura oral supone un reto quirúrgico, ya que hemos de respetar la función esfinteriana y la simetría. Presentamos varios casos de defectos quirúrgicos situados en la comisura bucal y la solución reconstructiva por la que optamos, así como una propuesta de algoritmo reconstructivo

The main objective of oncologic dermatologic surgery is the complete excision of skin tumors. During reconstruction of the defect, we must attempt to preserve function and cosmetic appearance. At the labial commissure, fibers from the superior and inferior portions of the orbicularis oris muscle intersect and the vermillion inserts onto the modiolus, a complex, cone-shaped structure at the angle of the mouth. Surgical reconstruction of the labial commissure is challenging because of the need to preserve sphincter function and cosmetic symmetry. We present a number of cases of surgical defects at the labial commissure and describe the reconstruction techniques used. We also propose an algorithm to help determine the most suitable technique for different cases

Reconstruction of Surgical Defects of the Labial Commissure.

The main objective of oncologic dermatologic surgery is the complete excision of skin tumors. During reconstruction of the defect, we must attempt to preserve function and cosmetic appearance. At the labial commissure, fibers from the superior and inferior portions of the orbicularis oris muscle intersect and the vermillion inserts onto the modiolus, a complex, cone-shaped structure at the angle of the mouth. Surgical reconstruction of the labial commissure is challenging because of the need to preserve sphincter function and cosmetic symmetry. We present a number of cases of surgical defects at the labial commissure and describe the reconstruction techniques used. We also propose an algorithm to help determine the most suitable technique for different cases.

Colgajo de pedículo subcutáneo en V-Y: su utilidad en la reconstrucción quirúrgica del pabellón auricular / Subcutaneous Pedicled V-Y Advancement Flap for Surgical Reconstruction of the Auricle of the Ear

El colgajo de pedículo subcutáneo en V-Y es útil en la cobertura de defectos de pequeño-mediano tamaño en áreas donde es fácil obtener un buen pedículo subcutáneo (labio superior, región malar, ciliar, punta y alas nasales). La práctica ausencia de tejido subcutáneo en la cara anterior del pabellón auricular condiciona su uso en esta localización. Presentamos 4 casos en los que utilizamos este colgajo para la reparación de defectos quirúrgicos ubicados en hélix, fosa escafoidea y antitrago, con un buen resultado funcional y estético

The subcutaneous pedicled V-Y advancement flap is useful for the repair of small and medium-sized defects in areas where it is easy to obtain a good subcutaneous pedicle (upper lip, cheek, eyebrow, and nasal tip and ala). The almost complete absence of subcutaneous tissue on the anterior aspect of the auricle of the ear can limit the use of this approach in this region. We present 4 patients in whom subcutaneous pedicled V-Y advancement flaps were used to repair surgical defects of the helix, scaphoid fossa, and antitragus, achieving a good functional and aesthetic result in all cases

Cirugía reconstructiva de la región cigomática-medial de la mejilla: Presentación de 5 casos / Reconstructive Surgery of the Medial Zygomatic Region of the Cheek: Presentation of 5 Cases

La mejilla es la subunidad anatómica mayor de la cara. Es una estructura bilateral, por lo que es necesario respetar la simetría. Por otra parte contacta periféricamente con importantes orificios naturales cuya localización debemos respetar en la reconstrucción quirúrgica. Esto es particularmente importante en la subunidad cigomático-medial, cuya delicada unión con el párpado inferior hace que tengamos que ser cuidadosos para evitar un ectropión. Presentamos 5 opciones reconstructivas de defectos quirúrgicos secundarios a la extirpación de otros tantos tumores en esta localización

The cheek is the largest anatomical subunit of the face. It is a bilateral structure and symmetry must therefore be preserved. Peripherally it is related to important natural orifices whose location must also be maintained during surgical reconstructions. This is particularly important in the medial zygomatic subunit, whose delicate junction with the lower eyelid means that care must be taken to avoid ectropion. We present 5 options for the reconstruction of surgical defects secondary to the excision of tumors in this region

Estenosis del meato uretral secundaria a liquen escleroso / Meatal stenosis secondary to lichen sclerosus

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Colgajo glabelar combinado con colgajo de transposición para la reconstrucción de 2 defectos nasales discontinuos / Combination of a Glabellar Flap and a Transposition Flap for the Reconstruction of 2 Noncontiguous Nasal Defects

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Subcutaneous pedicled V-Y advancement flap for surgical reconstruction of the auricle of the ear.

The subcutaneous pedicled V-Y advancement flap is useful for the repair of small and medium-sized defects in areas where it is easy to obtain a good subcutaneous pedicle (upper lip, cheek, eyebrow, and nasal tip and ala). The almost complete absence of subcutaneous tissue on the anterior aspect of the auricle of the ear can limit the use of this approach in this region. We present 4 patients in whom subcutaneous pedicled V-Y advancement flaps were used to repair surgical defects of the helix, scaphoid fossa, and antitragus, achieving a good functional and aesthetic result in all cases.

Injerto de cartílago en la reconstrucción del pabellón auricular / Cartilage Graft in the Reconstruction of the Pinna of the Ear

No disponible