Non-neoplastic Pulmonary Hyalinising Granuloma

Abstract

Pulmonary hyalinising granuloma (PHG) is a rare, benign and non-infectious pulmonary fibrosing lesion with unknown etiology. Fewer than 100 cases have been reported thus far. PHG can mimick advanced lung carcinoma and should therefore be a part of differential diagnosis for pulmonary nodule. It is characterized by whorled deposits of collagen and hyaline. Here we report the case of a 43 years old female who presented with dyspnea and constitutive symptoms. Imaging studies revealed bilateral pulmonary nodue and the histopathology consistent with PHG.