RESUMEN
La enfermedad de Still del Adulto es una variante sistémica del universo llamado "artritis idiopática juvenil", cuya diferencia es la edad de aparición, recibiendo este nombre cuando el cuadro se manifiesta en personas mayores de 15 años. Es una enfermedad autoinflamatoria caracterizada por fiebre intermitente, artritis, rash evanescente y linfadenopatías, asociado a manifestaciones de compromiso sistémico. Es una patología de baja prevalencia, pero es importante considerarla como uno de los principales diagnósticos etiológicos de la fiebre de origen desconocido.
Adult-onset Still's disease is a systemic variant of Still's disease distinguished from juvenile idiopathic arthritis by its onset age of over 15. It is an auto-inflammatory disease characterized by intermittent fever, arthritis, short-lived rash and lymphadenopathies. It has low prevalence but is important to consider as one of the principle etiological diagnoses of fever of unknown origin.
RESUMEN
Bruton-type agammaglobulinemia is primary hypogammaglobulinemia followed by severe recurrent infection, including bacterial otitis media, bronchitis, pneumonia, and meningitis. Septic arthritis is a main musculoskeletal disorder that can occur in association with Bruton-type agammaglobulinemia. But the development of rheumatoid arthritis (RA) is rarely reported in a patient with hypogammaglobulinemia. Here, we describe a case of 34-year-old male with Bruton-type agammaglobulinemia, who presented with multiple symmetric polyarthritis. He was diagnosed as having a RA according to ACR criteria. His symptoms of polyarthritis had been improved after the introduction of medications including DMARDs (disease modifying anti-rheumatic drugs). Our case suggests that RA can be developed in the setting of agammaglobulinemia, and even in this situation, anti-rheumatic agents were effective to control arthritis without complication such as severe infection.