Histological Findings of ETosis in Hermansky-Pudlak Syndrome with Pulmonary Fibrosis: A Follow-Up Case Report

Hermansky-Pudlak syndrome (HPS), both alone and in conjunction with pulmonary fibrosis (HPS-PF), is a rare, genetically heterogeneous, autosomal recessive disorder that affects multiple organs, including the lungs. In cases of HPS-PF, pulmonary fibrosis is preceded by local inflammation. We prese...

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Bibliographic Details
Main Authors: Sergio Michael Navarro, Aneel Ashrani, Myung Soo Park, Dong Chen
Format: Article
Language:English
Published: Korean Society for Thoracic & Cardiovascular Surgery 2025-01-01
Series:Journal of Chest Surgery
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Summary:Hermansky-Pudlak syndrome (HPS), both alone and in conjunction with pulmonary fibrosis (HPS-PF), is a rare, genetically heterogeneous, autosomal recessive disorder that affects multiple organs, including the lungs. In cases of HPS-PF, pulmonary fibrosis is preceded by local inflammation. We present a case of HPS-PF that exhibited histological evidence of extracellular traps (ETs) ensnaring macrophages, leading to cell death in a process known as ETosis. To our knowledge, ETosis has not been previously reported in the HPS-PF population and may represent a mechanism by which pulmonary fibrosis develops in these patients. Further research is needed to explore the potential connection between ETosis and HPS-PF, as this understanding could offer insights into the disease mechanism and pave the way for the development of novel treatment modalities.
ISSN:2765-1606
2765-1614