Fig. 18
From: Non-neoplastic hepatopancreatobiliary lesions simulating malignancy: can we differentiate?
A 60-year-old male with previously treated lymphoma, in complete clinical and imaging remission, now presents with fatigue, fever, and malaise. a Abdominal US image demonstrated several hardly discernible subcentimeter lesions throughout the liver parenchyma. Only one lesion was larger than a centimeter (arrows). b Axial plane postcontrast CT image demonstrates innumerable hypodense lesions (arrows). c On PET-CT, these lesions were found to be metabolically active with intense FDG uptake (arrows). Chest and neck CT studies were unremarkable (not shown). Percutaneous biopsy surprisingly showed noncaseating granulomas consistent with sarcoidosis. Symptoms and imaging findings promptly resolved after corticosteroid treatment