Fig. 3From: Rituximab and dupilumab improve eosinophilic granulomatosis with polyangiitis with multiple pulmonary thrombiLung perfusion scintigraphy before and after rituximab initiation. There were multiple regions of decreased blood flow in both lungs, but predominantly on the right side, before rituximab administration (a). Two years and 2 months after rituximab initiation, blood flow had improved but some areas of decreased flow remained (b)Back to article page