CD79A and teratoma: Multiplex immunofluorescence staining revealed the presence of diffuse IgG and IgA deposits and individualized IgG+ or IgA+ plasma cells in contact with the neuroglial tissue of 17/19 (89%) of NMDAR-E associate teratomas while only 3/15 (20%) control teratomas exhibited some weak IgG or IgA deposits without individualized stained cells (Fig. 6).