PMC8558582_01
Ultrasound with irregular masses in the right and left lobes of the liver.
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Initial imaging with right upper quadrant ultrasonography demonstrated multiple hypoechoic lesions (Figure 1).
CT imaging notable for 6 cm multi-cystic partially enhancing mass (white arrow).
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Computer tomography (CT) of the abdomen demonstrated a 6 cm multi-cystic partially enhancing mass within the right hepatic lobe (Figure 2).
Tissue sample from liver biopsy demonstrating IgG4 staining plasma cells, hematoxylin, and eosin stain, 40x magnification; (right) IgG4 immunohistochemical stain, 400x magnification.
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The patient was tested for a variety of organisms and tested negative (ie, no TB, malaria, etc.) Tissue samples obtained from the hepatic lesion also demonstrated fibro-inflammatory lesions with focally increased IgG4 positive plasma cells (Figure 3).