Nodular Pulmonary Amyloidosis: A Manifestation of Sjögren’s Syndrome

Figure 6

Congo red staining in lung biopsy. 4X. Pulmonary parenchyma with distortion of its architecture, thickened alveolar septa, and nodules constituted by dense amorphous eosinophilic material that captures the coloration, accompanied by lymphoplasmacytic inflammatory cells.