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Updated: Apr 19, 2026

Refined Murine Model of Idiopathic Pulmonary Fibrosis
Published on: June 17, 2025
[Pathological observation of progressive massive fibrosis in autophy frompatients with coal worker's pneumoconiosis]
Ruikang Jiang1, Yuling Wang1, Peicheng Liu1
1The Occupational Diesease Hospital of Xin Jiang Uygur Autonomous Region, Urumqi 830091, China.
Objective:
To study the pathological features of progressive massive fibrosis (PMF) in the lung tissues of patients with coal workers' pneumoconiosis (CWP).
Methods:
A retrospective analysis was made on the autopsies from 8 patients with CWP, which were observed under a microscope by HE staining, given their occupational history.
Results:
The age of 8 cases ranged 47-71 years (mean, 59.9 years), and their dust exposure time was 18-32 years (mean, 25.1 years). All the 8 cases were complicated by chronic bronchitis as well as emphysema, 7 cases by pulmonary heart disease, and 4 cases by pulmonary tuberculosis. In this group of patients, PMF was mainly distributed in the hilum and the upper lobe of the lung, including 7 cases of nodular fusion type and 1 case of PMF type. The collagen fibers around PMF extended radially and destroyed its surrounding tissue.
Conclusion:
Nodular fusion type is the main form of PMF in the lung tissues of CWP patients. It has a progressive and destructive process, which is the manifestation of advanced CWP.
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