A Classic Mimicker of Systemic Vasculitis Marc Moreno-Ariño, Vera Ortiz-Santamaria, Aída Deudero Infante, Montserrat Ayats Delgado, Francesc Novell Teixidó

Polyarthritis and Membranoproliferative Glomerulonephritis as Paraneoplastic Manifestation of Hodgkin's Lymphoma: A Case Report and Literature Review Daniel Erlij, Beatriz Calderón, Angela Rivera, Cristián Mella, Ximena Valladares, Emilio Roessler, María Teresa Rivera, Gonzalo Méndez

Septic Arthritis Due to Bacteroides fragilis in a Patient With Non-Hodgkins Lymphoma and Mixed Connective Tissue Disease Mario Luis Cousseau, Jorge Gentile, Roxana Pérez