[IgG4- and MPO-ANCA-associated hypertrophic pachymeningitis]. / Paquimeningitis hipertrófica relacionada con IgG4 y MPO-ANCA.

INTRODUCTION: Idiopathic hypertrophic pachymeningitis is a fibroinflammatory immune-mediated disease of the dura mater. Its diagnosis requires the preclusion of infectious, tumoral and other inflammatory diseases. In recent years new entities have been reported that can present with hypertrophic pachymeningitis, such as IgG4-associated disease and MPO-ANCA+ pachymeningitis, as a form of vasculitis limited to the central nervous system. CASE REPORT: We describe the case of a 64 years-old male with headaches and cervicalgia, predominantly at night, and clinical signs and symptoms of spinal cord compression. Following the diagnosis of craniocervical hypertrophic pachymeningitis provided by the magnetic resonance imaging study, an aetiological study was conducted. Infectious and tumoral diseases were precluded. The clinical features did not show any systemic involvement and high levels of IgG4 and MPO-ANCA+ were found in the results of the analyses. The clinical signs and symptoms quickly improved following treatment with corticoids. CONCLUSIONS: IgG4-related disease and MPO-ANCA-associated vasculitis limited to the central nervous system can account for a high percentage of the cases of hypertrophic pachymeningitis that were considered idiopathic, and their diagnosis requires a biopsy and a histological study.

TITLE: Paquimeningitis hipertrofica relacionada con IgG4 y MPO-ANCA.Introduccion. La paquimeningitis hipertrofica idiopatica es una enfermedad fibroinflamatoria de la duramadre. Su diagnostico requiere la exclusion de enfermedades infecciosas, tumorales y otras enfermedades inflamatorias. En los ultimos años se han descrito nuevas entidades que pueden presentarse con paquimeningitis hipertrofica: la enfermedad relacionada con IgG4 y la paquimeningitis MPO-ANCA+ como forma de vasculitis limitada al sistema nervioso central. Caso clinico. Varon de 64 años con cefalea y cervicalgia de predominio nocturno y clinica de compresion medular. Tras el diagnostico de paquimeningitis hipertrofica craneocervical facilitado por el estudio de resonancia magnetica, se realizo un estudio etiologico. Se descartaron enfermedades infecciosas y tumorales. La clinica no mostraba afectacion sistemica y en la analitica presentaba IgG4 elevada y MPO-ANCA+. Tras tratamiento con corticoides presento una rapida mejoria de la clinica. Conclusiones. La enfermedad relacionada con IgG4 y la vasculitis asociada a MPO-ANCA limitada al sistema nervioso central pueden representar un alto porcentaje de las paquimeningitis hipertroficas que se consideraban idiopaticas, y su diagnostico requiere biopsia y estudio histologico.

Paquimeningitis hipertrófica relacionada con IgG4 y MPO-ANCA / IgG4- and MPO-ANCA-associated hypertrophic pachymeningitis

Introducción. La paquimeningitis hipertrófica idiopática es una enfermedad fibroinflamatoria de la duramadre. Su diagnóstico requiere la exclusión de enfermedades infecciosas, tumorales y otras enfermedades inflamatorias. En los últimos años se han descrito nuevas entidades que pueden presentarse con paquimeningitis hipertrófica: la enfermedad relacionada con IgG4 y la paquimeningitis MPO-ANCA+ como forma de vasculitis limitada al sistema nervioso central. Caso clínico. Varón de 64 años con cefalea y cervicalgia de predominio nocturno y clínica de compresión medular. Tras el diagnóstico de paquimeningitis hipertrófica craneocervical facilitado por el estudio de resonancia magnética, se realizó un estudio etiológico. Se descartaron enfermedades infecciosas y tumorales. La clínica no mostraba afectación sistémica y en la analítica presentaba IgG4 elevada y MPO-ANCA+. Tras tratamiento con corticoides presentó una rápida mejoría de la clínica. Conclusiones. La enfermedad relacionada con IgG4 y la vasculitis asociada a MPO-ANCA limitada al sistema nervioso central pueden representar un alto porcentaje de las paquimeningitis hipertróficas que se consideraban idiopáticas, y su diagnóstico requiere biopsia y estudio histológico (AU)

Introduction. Idiopathic hypertrophic pachymeningitis is a fibroinflammatory immune-mediated disease of the dura mater. Its diagnosis requires the preclusion of infectious, tumoral and other inflammatory diseases. In recent years new entities have been reported that can present with hypertrophic pachymeningitis, such as IgG4-associated disease and MPO-ANCA+ pachymeningitis, as a form of vasculitis limited to the central nervous system. Case report. We describe the case of a 64 years-old male with headaches and cervicalgia, predominantly at night, and clinical signs and symptoms of spinal cord compression. Following the diagnosis of craniocervical hypertrophic pachymeningitis provided by the magnetic resonance imaging study, an aetiological study was conducted. Infectious and tumoral diseases were precluded. The clinical features did not show any systemic involvement and high levels of IgG4 and MPO-ANCA+ were found in the results of the analyses. The clinical signs and symptoms quickly improved following treatment with corticoids. Conclusions. IgG4-related disease and MPO-ANCA-associated vasculitis limited to the central nervous system can account for a high percentage of the cases of hypertrophic pachymeningitis that were considered idiopathic, and their diagnosis requires a biopsy and a histological study (AU)