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Updated: Feb 16, 2026

Detection of MicroRNA Expression in the Kidneys of Immunoglobulin A Nephropathic Mice
Published on: July 8, 2020
A first case report of pulmonary hyalinizing granuloma associated with immunoglobulin A nephropathy
June Hong Ahn1, Jee Seon Kim, Joon Hyuk Choi
1Department of Internal Medicine, Regional Center for Respiratory Disease, Yeungnam University Medical Center Department of Pathology, College of Medicine, Yeungnam University, Daegu, Republic of Korea.
Rationale:
Pulmonary hyalinizing granuloma (PHG) is a rare benign disease that has been shown to be associated with the deposition of immune complexes in the lung parenchyma caused by infection or autoimmune diseases. There have been no reports of PHG in association with immunoglobulin A nephropathy (IgAN).
Patient Concerns:
A 30-year-old woman visited with a 12-month history of dyspnea on exertion and cough that had worsened 1 month before her visit.
Diagnosis:
PHG associated with IgAN.
Interventions:
Steroid pulse therapy was performed.
Outcomes:
The patient was discharged uneventfully.
Lessons:
We present a case of PHG presenting as multiple pulmonary nodules mimicking metastatic lung cancer, which was diagnosed using wedge resection of the right middle lobe through video-assisted thoracoscopic surgery.
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