Korean J Gastroenterol.  2009 Dec;54(6):349-354. 10.4166/kjg.2009.54.6.349.

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

• Kim YS
• Park SJ
• Kim HK
• Park JM

• KMID: 1775933
• DOI: http://doi.org/10.4166/kjg.2009.54.6.349

Abstract

No abstract available.

MeSH Terms

*Diagnostic Errors
Eosinophilia/*diagnosis/pathology/radiography
Fluorodeoxyglucose F18/*diagnostic use
Humans
Liver Abscess/*diagnosis/pathology/radiography
Liver Neoplasms/diagnosis/secondary
Male
Middle Aged
Positron-Emission Tomography
Radiopharmaceuticals/*diagnostic use
Tomography, X-Ray Computed

Figure

• 

  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.

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  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.

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  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.

Reference

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