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  • Title: Multiple secondary cauda equina non-Hodgkin's lymphoma: a case report and literature review.
    Author: Ban Y, Jing Z, Zou J.
    Journal: BMC Cancer; 2019 Jun 17; 19(1):594. PubMed ID: 31208357.
    Abstract:
    BACKGROUND: Secondary central nervous system involvement of non-Hodgkin's lymphoma (NHL) is rare and with poor prognosis, the most common pathological type is diffuse large B cell lymphoma (DLBCL). Although it can occur in any part of central nervous system, it rarely directly infiltrates the spinal cord or cauda equina. CASE PRESENTATION: We present the case of 64-year-old immunocompetent man with a worsening pain of waist and left lower extremity, accompanied by numbness and paresis of bilateral lower extremity for 20 days. His previous medical history included a resection of painless mass in the left groin in another hospital 7 months ago, and the pathological diagnosis was non-Hodgkin small B cell lymphoma. Gd-enhanced MRI and F-18 FDG PET-CT scan demonstrated multiple infiltrations in the cauda equina. During the operation, we removed as many as 11 subdural-extramedullary bean-size lesions involving multiple nerve roots. The paralysis of his left leg recovered rapidly after the operation. During the follow-up period of more than one year, he underwent standard R-CHOP chemical therapy, no evidence of recurrence was noted until the 13th month, the patient died because of intracranial relapse. CONCLUSIONS: Imaging examination is important in the diagnosis of multiple secondary cauda equina non-Hodgkin's lymphoma, and we highlight the significance of gadolinium-enhanced MRI and F-18 FDG-PET/CT in preoperative diagnosis as well as the previous history.
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