Radiographic findings in 37 cases of primary CNS lymphoma in immunocompetent patients.

摘要: Because of the increasing incidence primary central nervous system lymphoma (PCNSL), it is essential to recognize this disease in order start appropriate treatment. We present characteristic CT and MRI features tumour. The findings 32 31 MR 37 immunocompetent patients with biopsy-proved PCNSL are reviewed. main presented analysed, discussed comparison proven literature data. Primary presents as supratentorial solitary lesions approximately 80% multiple 20%. In contrast classical data, located deep structures only one-third cases, involve posterior fossa 10% cases. Most hyperdense or isodense (92%) on CT, hypointense isointense T1-weighted images, about 40% hyperintense T2-weighted images. Nearly all enhance, except after corticosteroid administration. They produce mild oedema mass effect. Meningeal ventricular enhancement rare but suggestive. Calcification, haemorrhage necrosis scarce. Although have a variable appearance, imaging data often suggest diagnosis.