Nasal-type extranodal T-cell/NK lymphoma in association with hemophagocytic syndrome

Abstract: Extranodal NK/T-cell lymphoma nasal type is a rare disease that mainly affects the nasal cavity and paranasal sinuses of males in the fifth decade of life. It has aggressive and locally destructive behaviour, and can be complicated by the hemophagocytic syndrome, conferring high lethality to the disease. This article describes a case of NK/T-cell lymphoma nasal type in a previously healthy patient, exemplifying its rapid and fulminant course.

Rhinosinusal polyposis and inverted papilloma: a morphometric comparative study

Introduction Nasal obstruction is one of the main rhinologic complaints, and two diseases must be investigated as differential diagnosis: rhinosinusal polyposis and inverted papilloma. Using traditionalmethods, the differential diagnosis between these diseases may be difficult. The morphometric study may be a useful tool for differential diagnosis and to define prognosis. Objective Calculate the morphometric values of rhinosinusal polyposis and inverted papilloma and compare the average of variables obtained between the groups. Methods The nasal mucus of 10 patients who had surgery in the Department of Otorhinolaryngology and Surgery of Head and Neck was studied; 5 had rhinosinusal polyposis and 5 had inverted papilloma. After the capture and print of corresponding data of each slide, the largest and smallest diameters of the nuclei were measured and the morphometric variables were calculated: average diameter, perimeter, ratio between largest and smallest diameter, volume, area, ratio of volume to area, form coefficient, contour index, and eccentricity. Results We found a significant difference (p < 0.05) between the two groups in the following morphometric variables: largest diameter, smallest diameter, average diameter, volume, area, perimeter, and ratio of volume to area, indicating that these parameters can be useful in diagnostic differentiation between these diseases. Conclusion We founded morphometric variables higher in patients with inverted papilloma, which can be related to the neoplastic origin of the inverted papilloma. The analysis of nuclear parameters is an instrument of great value in the differential diagnosis between rhinosinusal polyposis and inverted papilloma.

Rhinosinusal Polyposis and Inverted Papilloma: A Morphometric Comparative Study.

Introduction Nasal obstruction is one of the main rhinologic complaints, and two diseases must be investigated as differential diagnosis: rhinosinusal polyposis and inverted papilloma. Using traditional methods, the differential diagnosis between these diseases may be difficult. The morphometric study may be a useful tool for differential diagnosis and to define prognosis. Objective Calculate the morphometric values of rhinosinusal polyposis and inverted papilloma and compare the average of variables obtained between the groups. Methods The nasal mucus of 10 patients who had surgery in the Department of Otorhinolaryngology and Surgery of Head and Neck was studied; 5 had rhinosinusal polyposis and 5 had inverted papilloma. After the capture and print of corresponding data of each slide, the largest and smallest diameters of the nuclei were measured and the morphometric variables were calculated: average diameter, perimeter, ratio between largest and smallest diameter, volume, area, ratio of volume to area, form coefficient, contour index, and eccentricity. Results We found a significant difference (p < 0.05) between the two groups in the following morphometric variables: largest diameter, smallest diameter, average diameter, volume, area, perimeter, and ratio of volume to area, indicating that these parameters can be useful in diagnostic differentiation between these diseases. Conclusion We founded morphometric variables higher in patients with inverted papilloma, which can be related to the neoplastic origin of the inverted papilloma. The analysis of nuclear parameters is an instrument of great value in the differential diagnosis between rhinosinusal polyposis and inverted papilloma.

Linfoma de células T/Natural Killer extranodal, tipo nasal / Extranodal Natural Killer /T-cell lymphoma, nasal type

Introducción: El linfoma de células T/Natural Killer (T/NK) extranodal, tipo nasal, es un linfoma extra-ganglionar poco frecuente, con extensión a lo largo de la línea media facial, rápidamente progresivo, catastrófico y de mal pronóstico, por lo que también se le conoce como "granuloma letal de la línea media". Objetivo: El propósito de este artículo es revisar la literatura disponible y actualizada sobre el linfoma de células T/NK extranodal, tipo nasal: manifestaciones clínicas, estándares de enfoque, diagnóstico, pronóstico y tratamiento. Diseño: Revisión Narrativa de la literatura. Metodología: Revisión de la literatura mediante búsqueda selectiva por términos MeSH: Extranodal Natural Killer /T cell lymphoma, nasal type, lethal midline granuloma, de las bases de datos: MEDLINE, Current Contents, Cochrane, Pubmed y Scielo, entre los años 2000 y 2014. Resultados: Se revisaron 36 artículos según los requerimientos de los objetivos. El linfoma de células T/NK es una neoplasia rápidamente progresiva, destructiva y de mal pronóstico excepto en los casos donde el diagnóstico ha sido oportuno. Conclusiones: El diagnóstico y tratamiento tempranos del linfoma de células T/NK extranodal, tipo nasal, son las únicas herramientas para mejorar el mal pronóstico y gran afectación en la calidad de vida de los pacientes con esta enfermedad.

"Introduction: Extranodal nasal Natural Killer (NK) /T-cell lymphoma, nasal type, is an extranodal lymphoma, infrequent, with extension along facial midline, rapidly progressive, catastrophic and with poor prognosis, also known as "lethal midline granuloma". Objectives: The purpose of this article is to review the current literature available about Extranodal nasal NK/T-cell lymphoma, nasal type: Clinical manifestations, approach standards, diagnosis, prognosis and treatment. Methodology: Literature review by selective MeSH search terms: Extranodal Natural Killer / T cell lymphoma, nasal type, lethal midline granuloma of databases: MEDLINE, Current Contents, Cochrane, PubMed and SciELO, between 2000 and 2014. Results: 36 articles were reviewed according to the requirements of the objectives. Extranodal NK/T cell lymphoma, nasal type, is a rapidly progressive neoplasia, destructive and with poor prognosis except in cases where diagnosis has been timely. Conclusions: Early diagnosis and treatment of Extranodal NK/T cell lymphoma, nasal type, are the only tools to improve the poor prognosis and high impairment in quality of life of patients with this disease.