Abstract
Splenic papillary intralymphatic angioendothelioma is extremely rare. We describe FDG PET/CT and MRI findings of splenic papillary intralymphatic angioendothelioma in a young adult. The splenic tumor showed hypodensity and increased FDG uptake with SUVmax of 4 on PET/CT, heterogeneous signal intensity with internal hypointense stellate scars on T2-weighted image, and progressive centripetal enhancement on dynamic contrast-enhanced T1-weighted images. This case indicates that papillary intralymphatic angioendothelioma should be included in the differential diagnosis of FDG-avid splenic lesions.
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