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[A case of thoracolithiasis]
Yasushi Horimasu1, Hiromi Egawa, Chie Moritani
1Department of Internal Medicine.
Summary
A rare case of thoracolithiasis, a lung condition mimicking tumors on chest X-rays, was diagnosed. This finding highlights the importance of differentiating benign lung nodules from malignant ones.
Area of Science:
- Pulmonology
- Thoracic Surgery
- Pathology
Background:
- Chest X-rays can reveal ambiguous lesions, necessitating advanced diagnostics.
- Differentiating benign from malignant lung nodules is crucial for patient management.
Observation:
- A 72-year-old man presented with an abnormal chest X-ray shadow.
- CT scans revealed a round pleural-based lung mass; biopsy attempts were unsuccessful.
- Surgical resection identified nodules with a coal dust core and concentric structures.
Findings:
- Histopathological analysis confirmed thoracolithiasis, characterized by coal dust and histiocytes within fibrous tissue.
- The resected nodules were consistent with a rare benign condition, not a primary lung tumor.
Implications:
- Thoracolithiasis requires consideration in the differential diagnosis of peripheral lung nodules.
- Accurate diagnosis prevents unnecessary aggressive treatment for benign conditions.
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