Type:
Educational Exhibit
Keywords:
Lymphoma, Imaging sequences, MR, CT, Neuroradiology brain
Authors:
M. Y. Alaoui Lamrani 1, B. Alami1, M. Maaroufi1, M. Boubbou1, I. Kamaoui1, N. Sqalli2, S. Tizniti1; 1Fès/MA, 2fes/MA
DOI:
10.1594/ecr2013/C-2512
Conclusion
CNS lymphomas may have a characteristic appearance on traditional CT and MR imaging; however,
none of these imaging characteristics will unequivocally differentiate CNS lymphomas from other neoplasms (eg,
metastases from other malignancies,
malignant gliomas,
meningiomas) or non-neoplastic diseases (eg,
multiple sclerosis,
stroke,
cerebral toxoplasmosis,
pyogenic abscess).
Furthermore,
the typical imaging characteristics may not be present.
DWI,
perfusion MR imaging,
and MR spectroscopy are increasingly used in clinical radiologic practice and may help to differentiate CNS lymphomas from other lesions of the brain.
Stereotactic biopsy performed at an earlier stage,
gives immunophenotypic characterization with far less aggressive procedure than open surgical biopsy,
and plays a major role in the therapeutic decision-making process.