Primary intracranial plasmablastic lymphoma with intradural extramedullary metastasis: a case report

This report represents the first documented case of PCNSPBL with intradural extramedullary metastasis, underscoring the diagnostic challenges associated with this rare malignancy. Advanced neuroimaging techniques, including functional MRI, serve as valuable complements to conventional MRI in the diagnostic workup. Early and accurate diagnosis of PBL is critical for timely intervention, and further studies are warranted to establish standardized imaging protocols for this rare entity.