1naresh

Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

)
1nareshArray
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

)

TABLE 4. Comparison of radiologic and clinical characteristics between low-grade and high-grade PCNSL in immunocompetent patients
Low-Grade PCNSL High-Grade PCNSL
Radiological morphology 
Moderate and inhomogeneous or absent contrast enhancement frequent Usually strong and homogemeous contrast enhancement
Localization of lesions often without contact to subarachnoid space Lesions typically in contact with the subarachnoid space
Hyperintensity of T2-weighted images often present Hyperintensity on T2-weighted images possible
Location in deep brain structures and spine common Location in deep brain structures and spine possible but infrequent
Clinical characteristics 
Indolent clinical course possible Aggressive clinical course almost invariably seen
Delays in diagnosis establishment possible due to paucity of symptoms and variable radiologic appearance Diagnosis establishment usually rapid due to severe symptoms and typical radiological appearance
Long survival with absence of complete tumor remission possible Survival without complete remission usually short
Long survival after local treatment (surgery, local radiotherapy) possible Survival with local treatment short, whole brain treatment required
Note.—PCNSL indicates primary central nervous system lymphoma.