A 25-year-old man suffered from recurrent, mass-like, intracerebral lesions and was diagnosed with tumefactive multiple sclerosis (MS). Both interferon β-1b and oral methotrexate (7.5 mg weekly) could not suppress frequent relapses, but he had been in remission for 8 months by the mitoxantrone treatment. At the age of 27, the patient developed a partial seizure. Brain MRI revealed a lesion in t...

Tumefactive demyelinating lesions (TDLs) are often misdiagnosed as brain tumors. To identify imaging characteristics of TDLs for their proper diagnosis, their differences from malignant gliomas, etc., were investigated based on 3-Tesla magnetic resonance imaging (MRI) and MR spectroscopy data that was obtained from 5 patients diagnosed with TDLs in our hospital. MRI displayed a paraventricular ...

Introduction. Amyloidosis is a disease associated with the extracellular deposition of insoluble protein material called amyloid. It can be acquired or hereditary, systemic organ-limited. Nodular pulmonary amyloidosis defined as one more tumefactive amyloid deposits in lungs. Outlines cases. This study presents two cases that were hospitalized at Institute for Pulmonary Diseases to clarify orig...

BACKGROUND AND PURPOSE The brain perivascular spaces (PVSs) are pial-lined, interstitial fluid-filled structures that accompany penetrating arteries. When enlarged, they may cause mass effect and can be mistaken for more ominous pathologic processes. The purpose of this study was to delineate the broad clinical and imaging spectrum of this unusual condition. METHODS Thirty-seven cases of gian...

Balo's concentric multiple scleroses (MS) is a rare demyelinating disease and a variant of multiple sclerosis. We report a case with interesting misleading clinical history and typical RI findings of Balo disease. A 19-year-old girl presented with fever and left hemiparesis following dental procedure 15 days ago. On physical examination fever and left limbs forces loss were noted. On CT scan a ...