A Case of Eosinophilic Abscess Mistaken for Metastasis due to FDG Uptake in PET-CT

Young Seok Kim; Seong Jin Park; Hee Kyung Kim; Jeoung Mi Park

doi:10.4166/kjg.2009.54.6.349

Journal List > Korean J Gastroenterol > v.54(6) > 1006599

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Kim, Park, Kim, and Park: A Case of Eosinophilic Abscess Mistaken for Metastasis due to FDG Uptake in PET-CT

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Korean J Gastroenterol 2009;54(6):349-354.

Published online: 21 February 2009

DOI: https://doi.org/10.4166/kjg.2009.54.6.349

A Case of Eosinophilic Abscess Mistaken for Metastasis due to FDG Uptake in PET-CT

Young Seok Kim, M.D., Seong Jin Park, M.D.^∗, Hee Kyung Kim, M.D.^†, Jeoung Mi Park, M.D.^‡

Department of Internal Medicine, Soon Chun Hyang University College of Medicine, Bucheon Hospital, Bucheon, Korea

^∗Department of Radiology, Soon Chun Hyang University College of Medicine, Bucheon Hospital, Bucheon, Korea

^†Department of Pathology, Soon Chun Hyang University College of Medicine, Bucheon Hospital, Bucheon, Korea

^‡Department of Nuclear Medicine, Soon Chun Hyang University College of Medicine, Bucheon Hospital, Bucheon, Korea

Correspondence to: Young Seok Kim, M.D. Department of Internal Medicine, Soon Chun Hyang University Bucheon Hospital, 1174, Jung-dong, Wonmi-gu, Bucheon 420-767, Korea Tel: +82-32-621-5085, Fax: +82-32-621-5018 E-mail: liverkys@schbc.ac.kr

REFERENCES

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Fig. 1.

Liver ultrasonography showed 0.6×1.8 cm sized hypoechoic lesion at S7, which suggested metastatic lesion (A, arrow head). Dynamic enhanced abdominal CT showed multiple low density nodules and slightly marginal enhanced scattered lesions during arterial phase (B, arrowhead). In portal phase, low density lesions with irregular margin were also found (C, narrow arrow head).

Fig. 2.

MRI images. (A) There were multiple iso to low signal intensity lesions at both lobes in T1WI. (B) Multiple small scattered lesions showed high signal intensity in T2WI. They suggested possibility of malignany.

Fig. 3.

18F-FDG PET/CT findings. Early phase revealed a focal hypermetabolic mass in the S7 right hepatic lobe, SUV of 2.9 (arrow, B, D). Delayed image showed much increased FDG uptake, SUV of 4.1 (arrow head, C). And fully attenuated image also had FGD uptake (E). This lesion should be differentiated from liver tumors such as metastasis and hepatocellular carcinoma.

Fig. 4.

Biopsy specimen showed heavy infiltration of eosinophils and mixed inflammatory cells to liver parenchyme (H&E; original magnification, A: ×40, B: ×100 and C: ×400). The lesion was confirmed as eosinophilic abscess.

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