The distribution pattern of Ig-A antibodies in immunofluorescence with positivity in the capillary loops along the glomerular basement membrane, tubular membrane, and Bowman's capsule reflects the distribution of the α1/α2(IV) collagen chains, which are the targets of the antibodies in this atypical presentation of anti-GBM disease (7,8). Here, CD79A is linked to glioblastoma.