Pneumocystis Jirovecii Pneumonia in a Patient with Anti-N-Methyl-D-Aspartate Receptor Postherpetic Encephalitis.

Anti-N-methyl-D-aspartate receptor encephalitis is a neuroimmunologic disorder that has been increasingly diagnosed during the past 5 years. It provokes a predictable syndrome treated with several immunomodulatory agents, such as corticosteroids and/or biologics. We managed a child with this disease who developed Pneumocystis jirovecii pneumonia as a direct infectious complication of the use of rituximab.