Korean J Gastroenterol.  2022 Jan;79(1):45-48. 10.4166/kjg.2021.165.

Primary Hepatic Actinomycosis Mimicking Hepatic Malignancy

• Chung YK
• Jung BH
• Wang HJ

• KMID: 2525523
• DOI: http://doi.org/10.4166/kjg.2021.165

Figure

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  Fig. 1 (A, B) Abdominal computed tomography demonstrated two large masses on left lobe of the liver, about 7 cm, 7.5 cm showing peripherally necrotic portions with central delayed enhancing solid portions with perihepatic fat infiltrations and fat plane loss between the stomach, duodenum, suggesting invasion.

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  Fig. 2 (A) Increased size of peripheral low density portions of previous lobulating hepatic masses on left lobe with (B) rapid necrotic volume change of S4 lesion extending superiorly to S8 subcapsular area, with suspected parenchymal rupture, capsular defect.

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  Fig. 3 Partial ruptured mass on S4 and multilobulating mass on left lateral segment.

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  Fig. 4 The specimen shows a whitish capsular retraction with rupture and hemorrhagic area which had an ill-defined tan/yellow mass-like lesion, measuring 18.0×9.5×6.0 cm. (A) The lesion is composed of solid area and many cystic spaces containing inflammatory exudate. (B) Hematoxylin and eosin stain, ×200; (C) GMS, ×200 and (D) Gram stain, ×200 revealed positive in filamentous bacilli.

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  Fig. 5 Postoperative computed tomography scan at postoperative 14th day. There was no abnormal findings except small amount of fluid collection on resection margin.

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