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Silicosis With Progressive Massive Fibrosis: A Radiologist’s Guide to Dyspnea, Chest CT, and Occupational Exposure

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  Edited by ScholarGen MediAI Team Executive Clinical Summary A man in his 60s presented with progressively worsening dyspnea. Chest radiography demonstrated bilateral upper-lung predominant mass-like opacities accompanied by numerous small nodular opacities. Calcified hilar and mediastinal lymph nodes provided an additional diagnostic clue. His occupational history revealed previous sandblasting exposure. Chest CT subsequently demonstrated large, confluent, partially calcified masses predominantly involving the upper lungs, extensive small pulmonary nodules with a perilymphatic distribution, and enlarged partially calcified hilar and mediastinal lymph nodes. Taken together, the clinical and radiologic pattern is highly characteristic of silicosis with progressive massive fibrosis (PMF) . The diagnostic lesson is broader than recognizing a large fibrotic mass. A radiologist must integrate the distribution of pulmonary nodules, the morphology and location of the fibrotic masses, lym...
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Zenker’s Diverticulum: Advanced Radiologic Diagnosis, Pathophysiology, and Multimodal Enterprise Management

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Comprehensive clinical guide covering fluoroscopic imaging, Killian's triangle anatomy, differential diagnoses, and enterprise AI workflows. Edited by ScholarGen MediAI Team Executive Clinical Summary Zenker’s diverticulum (ZD) is an acquired, false pulsion diverticulum situated through Killian’s triangle, a zone of anatomical weakness located between the oblique fibers of the thyropharyngeus muscle and the horizontal fibers of the cricopharyngeus muscle. Clinically manifesting with progressive dysphagia, nocturnal regurgitation of undigested food, cervical gurgling, halitosis, and aspiration risks, this lesion predominantly affects older adults. This article provides a comprehensive evaluation of ZD, detailing its embryological and anatomical basis, fluoroscopic and cross-sectional imaging features, differential diagnoses, clinical management, enterprise-level AI workflow integration, and radiologic diagnostic pitfalls. Key Clinical Questions What are the key anatom...
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