MRI cerebellar abscess with spectroscopy
45 year old male with recent onset headaches and vomiting, febrile
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well defined rim enhancing irregular cystic lesion in the superior right cerebellar hemisphere with perilesional edema and mass effect on the fourth ventricle and brainstem. marginal hemorrhage noted no solid component seen.
spectroscopy shows no choline / NAA in the margins. massive lipid and amino acid peaks are seen at 1.2 and 0.8
diffusion restriction is present