Fig. 1From: Pathologic tonsillar findings similar to IgA nephropathy and the role of tonsillectomy in a patient with nephrotic syndromePathological tonsillar findings in this patient. a The lymphoid follicles and germinal centers had various sizes. The boundary of each follicle was unclear and the expansion of the distance between follicles was observed. b CD4 staining showed T-cell nodules were enlarged by infiltration of CD4+ cells (allow). c Cytokeratin staining showed abnormal reticulation of the crypt epithelium (arrow)Back to article page