Eikenella corrodens isolated from pleural effusion: A case report

Figure 1 Initial computed tomography scan of the patient (blue arrow).

Figure 2 Eikenella corrodens. A: Eikenella corrodens (E. corrodens) gram stain of from a pleural empyema sample in an observing field under an oil immersion lens (× 100) (blue arrow); B: The observation of E. corrodens colonies in culture cultured for 48 h at 35 °C in a 6%-7% CO₂ environment (blue arrow); C: The bacterial morphology of E. corrodens with a direct smear of E. corrodens colonies in culture (blue arrow).

Figure 3 Display of biochemical reaction of Eikenella corrodens colonies in culture. The typical isolates demonstrated positive outcomes for ornithine decarboxylase (the far left) and nitrate reduction tests (the left of the middle), as well as lysine decarboxylase (the right of the middle), and oxidase detections (the far right).