PMID- 35350291 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220401 IS - 1662-680X (Print) IS - 1662-680X (Electronic) IS - 1662-680X (Linking) VI - 14 IP - 1 DP - 2022 Jan-Apr TI - Progressive Multifocal Leukoencephalopathy and Immune Reconstitution Inflammatory Syndrome after Discontinuation of Fingolimod. PG - 38-43 LID - 10.1159/000521944 [doi] AB - Progressive multifocal leukoencephalopathy (PML) is a rare complication of immunosuppressive treatment in MS patients. Immune reconstitution inflammatory syndrome (IRIS) appears after the withdrawal of certain drugs such as natalizumab (NTZ) or fingolimod. The development of PML-IRIS after NTZ treatment has been described, and its diagnosis is made by clinical and radiological criteria and the determination of the John Cunningham virus in CSF. We present a clinical case of a patient with MS who, after the withdrawal of fingolimod, developed PML-IRIS despite sustained lymphopenia. This is important for pharmacovigilance purposes, not only for NTZ but also for alternative drugs used in MS treatment. CI - Copyright (c) 2022 by S. Karger AG, Basel. FAU - Pinar Morales, Raquel AU - Pinar Morales R AD - Servicio de Neurologia, Hospital Clinico Universitario San Cecilio, Granada, Spain. AD - Departamento Medicina, Universidad de Granada, Granada, Spain. FAU - Carrasco Garcia, Maria AU - Carrasco Garcia M AD - Servicio de Neurologia, Hospital Clinico Universitario San Cecilio, Granada, Spain. FAU - Gutierrez-Rojas, Luis AU - Gutierrez-Rojas L AD - Departamento Medicina, Universidad de Granada, Granada, Spain. AD - Unidad de Salud Mental, Hospital Clinico Universitario San Cecilio, Granada, Spain. FAU - Barrero Hernandez, Francisco Javier AU - Barrero Hernandez FJ AD - Servicio de Neurologia, Hospital Clinico Universitario San Cecilio, Granada, Spain. AD - Departamento Medicina, Universidad de Granada, Granada, Spain. LA - eng PT - Case Reports DEP - 20220207 PL - Switzerland TA - Case Rep Neurol JT - Case reports in neurology JID - 101517693 PMC - PMC8921886 OTO - NOTNLM OT - Fingolimod OT - Immune reconstitution inflammatory syndrome OT - Magnetic resonance imaging OT - Multiple sclerosis OT - Progressive multifocal leukoencephalopathy COIS- The author declares that the research was conducted in the absence of any commercial or financial relationships that could represent a potential conflict of interest. EDAT- 2022/03/31 06:00 MHDA- 2022/03/31 06:01 PMCR- 2022/02/07 CRDT- 2022/03/30 05:07 PHST- 2021/11/08 00:00 [received] PHST- 2022/01/05 00:00 [accepted] PHST- 2022/03/30 05:07 [entrez] PHST- 2022/03/31 06:00 [pubmed] PHST- 2022/03/31 06:01 [medline] PHST- 2022/02/07 00:00 [pmc-release] AID - crn-0014-0038 [pii] AID - 10.1159/000521944 [doi] PST - epublish SO - Case Rep Neurol. 2022 Feb 7;14(1):38-43. doi: 10.1159/000521944. eCollection 2022 Jan-Apr.