PMC4531766_01
Chest radiograph shows focal consolidation of the right lower lung.
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Chest radiograph showed focal consolidation of the right lower lobe (Figure 1).
Computed tomography of the chest shows patchy air-space consolidation and atelectasis of the right lower lobe.
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Computed tomography of the chest demonstrated patchy air-space consolidation and atelectasis of the right lower lobe (Figure 2).
Fiberoptic brochoscopy shows obstruction of the right superior segment of the lower bronchus with an exophytic endobronchial mass
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Fiberoptic bronchoscopy showed subtotal occlusion of the right superior segment of the lower lobe by a yellow-white, stony-hard mass, which was surrounded by inflamed and edematous bronchial mucosa (Figure 3).
Photomicrograph of actinomyces granules shows the characteristic radiating eosinophilic filamentous bacteria. (H & E, X 100)
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Histologically, the biopsy specimen revealed an inflammatory cellullar infiltration and colonies which were formed of a radiating network of filaments staining intensely with hematoxylin (Figure 4).
The Gram stain shows the thin, filamentous, Gram-positive, branching organism.
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The Gram stain also showed a thin, filamentous, Gram-positive, branching organism. (Figure 5).
Chest radiograph shows resolution of focal consolidation of the right lower lobe.
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After 3 months of therapy, the clinical manifestations and radiologic findings were markedly improved (Figure 6).