IgG4-related autoimmune pancreatitis: A neoplasm mimicker Diana C. Quintero-González; Marcela Muñoz-Urbano; Adriana-Lucía Vanegas-García; Gloria Vásquez;

IgG4-related disease associated with immune thrombocytopenia: A clinical case report María José Suárez Terán; Pablo Marcelo Cáceres Fernández; Christian Augusto Armijos Villacis; Gabriela Alexandra Torres Herrera;

Cervical lymph nodes in rheumatology: A diagnostic dilemma Lorena Sager; Alejandro Reibaldi; Romina Calvo; Alberto Ortiz; Susana Roverano; Federico Jauk; Sergio Paira;