Abstract
Pulmonary hyalinizing granuloma (PHG) which should be considered in the differential diagnosis of pulmonary nodules of unknown origin is a distinct fibrosing lesion of lung that occurs in middle-aged patients. It has been usually reported as case reports in the literature. Patients are usually symptomatic. We present the case which recognized during operation and determined rarely.
Highlights
Pulmonary hyalinizing granuloma (PHG) which should be considered in the differential diagnosis of pulmonary nodules of unknown origin is a distinct fibrosing lesion of lung that occurs in middle-aged patients
Pulmonary hyalinizing granuloma (PHG) which should be considered in the differential diagnosis of pulmonary nodules of unknown origin is a distinct fibrosing lesion of lung that occurs in middle-aged patients [1,2]
The etiopathogenesis of PHG is unknown, it has been postulated that it represents an exaggerated immune response, possibly due to chronic granulomatous infections such as tuberculosis or histoplasmosis or antigen-antibody complexes so that this immune response may result in deposition of immunoglobulins or immune complexes in the lung [1,2,3,4,5,6,7,8]
Summary
Pulmonary hyalinizing granuloma (PHG) which should be considered in the differential diagnosis of pulmonary nodules of unknown origin is a distinct fibrosing lesion of lung that occurs in middle-aged patients [1,2]. We present the case which recognized during operation and determined rarely. The radiological appearance of the lesion is that of multiple, bilateral nodules which sometimes mimic metastatic carcinoma [1,2,3].
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