Abdominal wall actinomycosis simulating a malignant neoplasm: Case report and review of the literature

Figure 1 Diagnostic images of the patient. A： Computed tomography scan shows a 6 cm × 5 cm solid mass that originated from the left inferior portion of the rectus muscle of the abdominal wall (arrow); B: Magnetic resonance image confirms that the solid mass originated from the left inferior portion of the rectus muscle of the abdominal wall (arrow).

Figure 2 Gross appearance of the excised specimen.

Figure 3 Histopathological examination shows the presence of Actinomyces Israelii (A: 4 ×; B: PAS,10 ×).