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. 2015 Apr 3:557–582.e22. doi: 10.1016/B978-1-4557-3383-5.00033-6

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eFigure 33-22 — Actinomycosis: cavitary nodule.

A, Frontal chest radiograph shows right upper lobe consolidation and a poorly defined nodular opacity (arrow). B, Frontal chest radiograph 2 weeks following A shows resolution of the right upper lobe consolidation, now exposing a dominant cavitary right apical nodule with internal opacity (arrow), and small surrounding nodules (arrowheads). C and D, Axial chest CT displayed in lung windows performed within 1 day of the presenting chest radiograph (A) shows the right apical opacity as a cavitary nodule with an internal air-fluid level; surrounding ground-glass opacity and consolidation are present, as seen on the chest radiograph (A). E and F, Chest CT displayed in lung windows performed the same day as B shows the dominant right apical opacity with complex internal architecture (arrows) and confirms small surrounding nodules. Biopsy of this lesion recovered Actinomyces israelii.

(Courtesy Michael Gotway, MD.)

eFigure 33-22 — Actinomycosis: cavitary nodule.

A, Frontal chest radiograph shows right upper lobe consolidation and a poorly defined nodular opacity (arrow). B, Frontal chest radiograph 2 weeks following A shows resolution of the right upper lobe consolidation, now exposing a dominant cavitary right apical nodule with internal opacity (arrow), and small surrounding nodules (arrowheads). C and D, Axial chest CT displayed in lung windows performed within 1 day of the presenting chest radiograph (A) shows the right apical opacity as a cavitary nodule with an internal air-fluid level; surrounding ground-glass opacity and consolidation are present, as seen on the chest radiograph (A). E and F, Chest CT displayed in lung windows performed the same day as B shows the dominant right apical opacity with complex internal architecture (arrows) and confirms small surrounding nodules. Biopsy of this lesion recovered Actinomyces israelii.

(Courtesy Michael Gotway, MD.)