MPO and ganglioneuroma: Interestingly, a strong correlation between mononuclear cell infiltrates and severity of kidney injury reflected by rise of serum creatinine (r=0.4166, p=0.0480), eGFR loss (r=-0.4191, p=0.0465), and requirement of RRT (r=0.4893, p=0.0178), less categorization into ARRS low-risk group (r=-0.5083, p=0.0133), and accelerated tubular atrophy (ct, r=0.4172, p=0.0477) in MPO-ANCA GN was observed (Figure 7A).