IGH-MYC Fusion t(8;14) by FISH Immunoglobulin G Subclass 1 IGHV Mutation Analysis by Sequencing Immunoglobulin G Subclass 2 Imipramine and Desipramine, Serum or Plasma Immunoglobulin G Subclass 3 Immune Complex Panel Immunoglobulin G Subclass 4 IA-2 Antibody Immunofixation Electrophoresis, Immunoglobulin D and Immunoglobulin E, Serum Ibuprofen Immunofixation Electrophoresis, Qualitative, Gel IDH1 and IDH2 Mutation Analysis, exon 4 Immunoglobulin A IDH1 R132H by Immunohistochemistry Immunoglobulin A (IgA) by Immunohistochemistry IDH1 R132H Point Mutation with Interpretation by Immunohistochemistry Immunoglobulin A Subclasses (1 and 2) IGF Binding Protein 2 Immunoglobulin A, CSF