Reproducibilidad interobservador de un sistema de grado para el carcinoma de células renales tipo cromófobo / Interobserver Reproducibility of a Grading System for Chromophobe Renal Cell Carcinoma

Objetivos: Valorar la reproducibilidad interobservador y evaluar el sistema de gradación propuesto por Paner et al. para el carcinoma de células renales cromófobo. Material y métodos: Tras seleccionar 23 casos de carcinoma renal de tipo cromófobo de los hospitales Xeral-Cíes, Meixoeiro y POVISA de Vigo de los últimos 15 años se ha realizado una sesión informativa de los criterios del sistema de gradación de Paner et al. Posteriormente los patólogos observadores han aplicado dicho sistema a cada caso, valorando una laminilla seleccionada. Se ha calculado el índice Kappa de reproducibilidad interobservador, ponderado según la escala de Landis y Koch. Resultados: La distribución de grados en la mayoría de los 6 observadores participantes es similar, con predominio del grado 1 en 4 de los mismos. Los 2 observadores restantes consideraron una mayoría relativa de casos como grado 2. Los valores de Kappa oscilan entre 0,136 y 0,674, observándose un predominio de valores indicadores de reproducibilidad discreta-moderada (0,21-0,60). El mayor valor de Kappa (0,674) se ha dado entre un observador novel y el patólogo más experto. Entre los 2 observadores más veteranos se ha obtenido el índice más bajo (0,136). Conclusiones: La reproducibilidad interobservador en nuestros centros para el grado propuesto por Paner et al. es discreta-moderada. La asignación de los grados 1 y 2 no es homogénea entre los 6 observadores participantes. En espera de la existencia de una gradación consensuada por las sociedades científicas, creemos prudente no utilizar ningún sistema de gradación en los carcinomas de células renales de tipo cromófobo (AU)

Objectives: To evaluate interobserver reproducibility of a grading system proposed by Paner et al. for chromophobe renal cell carcinoma. Material and methods: After selecting 23 cases of chromophobe renal cell carcinoma from the Xeral-Cíes Hospital, Meixoeiro Hospital and POVISA Hospital from the last 15 years, an informative meeting on the Paner et al. grading system criteria was held. After, the participating pathologists applied the system to each case, evaluating one slide selected. Kappa index for interobserver reproducibility was calculated, and it was classified according to the Landis and Koch scale. Results: The grading distribution was similar for most of the 6 participating observers, with grade 1 predominance. The remaining 2 observers considered a relatively higher proportion of grade 2. Kappa index values ranged from 0.136 to 0.674, with a discrete-moderate reproducibility index predominance (0.21-0.60). Highest Kappa value (0.674) was obtained between the most novel and the most expert interobservers. The lowest Kappa value was obtained among the most veteran pathologists (0.136). Conclusions: Interobserver reproducibility for chromophobe renal cell carcinoma is discrete-moderate in our institutions when the novel grade proposed by Paner et al. is used. Labeling of grades 1 and 2 is not homogeneous among 6 participating observers. While awaiting a grading consensus on a new classification by the scientific societies, we consider that the routine use of a grading system for chromophobe renal cell carcinoma should not be used (AU)

Interobserver reproducibility of a grading system for chromophobe renal cell carcinoma.

OBJECTIVES: To evaluate interobserver reproducibility of a grading system proposed by Paner et al. for chromophobe renal cell carcinoma. MATERIAL AND METHODS: After selecting 23 cases of chromophobe renal cell carcinoma from the Xeral-Cíes Hospital, Meixoeiro Hospital and POVISA Hospital from the last 15 years, an informative meeting on the Paner et al. grading system criteria was held. After, the participating pathologists applied the system to each case, evaluating one slide selected. Kappa index for interobserver reproducibility was calculated, and it was classified according to the Landis and Koch scale. RESULTS: The grading distribution was similar for most of the 6 participating observers, with grade 1 predominance. The remaining 2 observers considered a relatively higher proportion of grade 2. Kappa index values ranged from 0.136 to 0.674, with a discrete-moderate reproducibility index predominance (0.21-0.60). Highest Kappa value (0.674) was obtained between the most novel and the most expert interobservers. The lowest Kappa value was obtained among the most veteran pathologists (0.136). CONCLUSIONS: Interobserver reproducibility for chromophobe renal cell carcinoma is discrete-moderate in our institutions when the novel grade proposed by Paner et al. is used. Labeling of grades 1 and 2 is not homogeneous among 6 participating observers. While awaiting a grading consensus on a new classification by the scientific societies, we consider that the routine use of a grading system for chromophobe renal cell carcinoma should not be used.

Linfangioma quístico mesentérico: a propósito de un caso de abdomen agudo / Mesenteric cystic lymphangioma: a case report presenting with acute abdomen

Los linfagiomas mesentéricos, en ocasiones asintomáticos, pueden presentarse como un hallazgo incidental en pruebas de imagen realizadas por otro motivo. El tumor también puede ser descubierto por sus complicaciones al comprimir estructuras vecinas, con signos inespecíficos de distensión abdominal o datos de abdomen agudo y obstrucción intestinal. Presentamos el caso de una niña de seis años de edad con clínica de abdomen agudo, compatible con cuadro de apendicitis aguda que no se descarta tras la realización de las pruebas de imagen. La laparotomía evidencia una malformación linfática intestinal con confirmación anatomopatológica de linfagioma quístico mesentérico (AU)

Mesenteric lymphangioma, sometimes asymptomatic, may course as an incidental finding on imaging performed for another reason. Sometimes the tumour is discovered because of its complications, by compressing neighbouring structures, with nonspecific signs of bloating or data of acute abdomen and obstruction. We report a 6 year old girl with symptoms of acute abdomen, resembling acute appendicitis not discarded with imaging tests. The laparotomy shows an intestinal lymphatic malformation with anatomo-pathological confirmation of cystic mesenteric lymphangioma (AU)

Pioderma gangrenoso con afectación pulmonar: caso clínico y revisión de la literatura / Lung Involvement in Pyoderma Gangrenosum: A Case Report and Review of the Literature

El pioderma gangrenoso es una enfermedad perteneciente al grupo de las dermatosis neutrofílicas. Además de una clínica cutánea característica puede presentar manifestaciones viscerales. Presentamos el caso de una mujer de 34 años con un brote de pioderma gangrenoso exacerbado por yodo, con afectación pulmonar, y revisamos otros casos de pioderma gangrenoso con afectación pulmonar publicados hasta la fecha. Discutimos la posible implicación del yodo como factor de exacerbación del pioderma gangrenoso. Destacamos la afectación pulmonar como manifestación extracutánea más frecuente de esta entidad, y recordamos la granulomatosis de Wegener como principal diagnóstico diferencial del pioderma gangrenoso con afectación pulmonar. Es importante considerar la posible presentación de manifestaciones extracutáneas en el pioderma gangrenoso, entre las que destaca la afectación pulmonar, para evitar técnicas diagnósticas agresivas, al menos inicialmente (AU)

Pyoderma gangrenosum is a neutrophilic dermatosis that, in addition to its characteristic skin manifestations, can cause visceral alterations. Our patient was a 34-year-old woman with pyoderma gangrenosum that was exacerbated by iodine and that also affected the lungs. Other published cases of lung involvement in pyoderma gangrenosum are reviewed and we discuss the possible exacerbation of this disease by iodine. Lung involvement is the most common extracutaneous manifestation of pyoderma gangrenosum and the main differential diagnosis is then with Wegener granulomatosis. It is important to remember the possible presentation of extracutaneous manifestations of pyoderma gangrenosum, including particularly lung involvement, in order to avoid subjecting a patient to aggressive diagnostic tests, at least in the initial stages (AU)

[Lung involvement in pyoderma gangrenosum: a case report and review of the literature]. / Pioderma gangrenoso con afectación pulmonar: caso clínico y revisión de la literatura.

Pyoderma gangrenosum is a neutrophilic dermatosis that, in addition to its characteristic skin manifestations, can cause visceral alterations. Our patient was a 34-year-old woman with pyoderma gangrenosum that was exacerbated by iodine and that also affected the lungs. Other published cases of lung involvement in pyoderma gangrenosum are reviewed and we discuss the possible exacerbation of this disease by iodine. Lung involvement is the most common extracutaneous manifestation of pyoderma gangrenosum and the main differential diagnosis is then with Wegener granulomatosis. It is important to remember the possible presentation of extracutaneous manifestations of pyoderma gangrenosum, including particularly lung involvement, in order to avoid subjecting a patient to aggressive diagnostic tests, at least in the initial stages.