A Case of Thoracic Empyema Caused by Actinomyces naeslundii

Yuta Matsubayashi; Kiyomichi Mizuno; Takashi Yamashita; Katsuyuki Asai

doi:10.12659/AJCR.943030

18 February 2024 : Case report Japan

A Case of Thoracic Empyema Caused by Actinomyces naeslundii

Rare disease

Yuta Matsubayashi^1ABDEF, Kiyomichi Mizuno^2ABE, Takashi Yamashita^1ABE, Katsuyuki Asai^2ABE*

DOI: 10.12659/AJCR.943030

Am J Case Rep 2024; 25:e943030

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Figure 3. The specimen obtained through the second CT-guided biopsy. During the second CT-guided biopsy, viscous purulent pleural effusion was aspirated, and greenish-yellow sulfur granules were confirmed macroscopically (A). Microphotography of the sulfur granules, showing actinomycotic granules (arrow) surrounded by inflammatory cell infiltration (B) (hematoxylin and eosin stain, magnification ×20).

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A Case of Thoracic Empyema Caused by Actinomyces naeslundii

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