Pulmonary schistosomiasis mimicking IgG4‐related lung disease

IgG4‐related disease (IgG4‐RD) is a systemic fibroinflammatory disease characterized by tumefactive lesions in various organ systems, including the lungs. Clinical and radiological manifestations of IgG4‐RD are relatively non‐specific, and we report a case highlighting the importance of histopathological confirmation in cases of suspected IgG4‐related lung disease. A 44‐year‐old male with significantly elevated serum IgG4 levels, patchy...