Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Eosinophilic granuloma (Histiocytosis X)
- Radiologic Findings
- Chest radiograph shows multiple small ring opacities and reticulonodular opacities in both lung fields, which are evenly distributed from upper lung to costophrenic angles.
Initial HRCT scans show multiple cavitary nodules and thin- and thick-walled cysts: some have smooth margins, others have irregular margins. These are seen in peribronchial or peribronchiolar in location, and neither in zonal predominance, nor sparing of lung bases. The intervening lung parenchyma appears normal without evidence of fibrosis.
F/U HRCT after 5 months without therapy show marked decreased in number, size of cavitated nodules, but still Diagnosis of eosinophilic granuloma (histiocytosis X) was made by thoracoscopic wedge resection of left lower lobe just after initial HRCT. Pathologic specimen at a low magnification(002) shows interstitial thickening caused by a cellular infiltrate and mild fibrosis. A magnified view(001) of the infiltrate shows it to be composed of scattered, bilobed eosinophils and numerous histiocytes with irregularly shaped, vesicular nuclei that are focally grooved.
- Brief Review
- ??We want to focus on the clinical and pathologic findings of histiocytosis X.
- References
- 1. Webb WR, Muller NL, Naidich DP. High-resolution CT of the lung. 3rd. Lippincott Williams & Wilkins, 2001:421-429
2. MW Brauner, P Grenier, MM Mouelhi, D Mompoint, and S Lenoir. Pulmonary histiocytosis X: evaluation with high-resolution CT. Radiology 1989; 172: 255-258.
3. AD Moore, JD Godwin, NL Muller, DP Naidich, SP Hammar, DL Buschman, JE Takasugi, and CR de Carvalho Pulmonary histiocytosis X: comparison of radiographic and CT findings. Radiology 1989; 172: 249-254.
- Keywords
- Lung, Interstitial lung disease, LCH, smoking related ILD,