MRI characteristics of primary central nervous system lymphomas

YANG Zi-jiang; WANG Lin

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Journal of China Clinic Medical Imaging ›› 2007, Vol. 18 ›› Issue (6) : 387-389.

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MRI characteristics of primary central nervous system lymphomas

YANG Zi-jiang, WANG Lin

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Abstract

Objective: To analyse MRI findings of primary central nervous system lymphoma(PCNSL) in immunocompetent patients. Materials and Methods: MRI findings in 21 patients with pathologically proved PCNSL were analyzed retrospectively, 14 male and 7 female, mean age, 49.6 years old. Results: Thirty lesions were identified in 21 patients. The MRI findings of PCNSL were as follows: ①hypo- or iso-intense on T1WI and iso- or slightly hyper-intense on T2WI, solitary or multiple well-defined lesions; ②slight or moderate peritumoral edema, and characteristic flame-like edema; ③enhancement is intense and homogeneous, the presence of “incision sign” and “angular sign” are more specific. Conclusion: Conventional MRI plays an important role in the diagnosis of PCNSL.

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central nervous system neoplasms / lymphoma / magnetic resonance imaging

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YANG Zi-jiang;WANG Lin. MRI characteristics of primary central nervous system lymphomas[J]. Journal of China Clinic Medical Imaging. 2007, 18(6): 387-389