期刊
EUROPEAN JOURNAL OF HAEMATOLOGY
卷 85, 期 4, 页码 321-328出版社
WILEY
DOI: 10.1111/j.1600-0609.2010.01478.x
关键词
non-Hodgkin's lymphoma; central nervous system; cerebrospinal fluid; flow cytometry; intrathecal; relapse
类别
资金
- Jose Carreras International Leukemia Foundation [P-EF/08]
- RETICS [06/0020/1056]
- Mundipharma Pharmaceuticals, SL
Background and aim: Flow cytometry (FCM) analysis of cerebrospinal fluid (CSF) is more sensitive than conventional cytology (CC) for diagnosis of lymphomatous meningeosis, but the clinical significance of occult central nervous system (CNS) disease (positive FCM with negative CC) remains unknown. Patients and methods: CSF samples from 105 patients with newly diagnosed aggressive lymphomas at high risk of CNS involvement were prospectively studied by both CC and FCM, and results were correlated with cumulative incidence of CNS relapse and overall survival (OS). Patients were divided into three groups: 1) patients without CNS involvement (CC-/FCM-; n = 83); 2) individuals with occult CNS disease (FCM+/CC-; n = 15); and 3) cases with CNS disease (CC+/FCM+; n = 7). Results: Six cases showed CNS relapse or progression: two in Group 1 (2.4%), two in Group 2 (13%) and two in Group 3 (28.5%) (Group 2 vs. 1, P = 0.04; Group 3 vs. 1, P < 0.001). Patients from Groups 2 (P = 0.05) and 3 (P < 0.001) also showed a higher cumulative incidence of CNS relapse than those from Group 1. Significant differences were observed in OS between FCM-/CC- and FCM+/CC+ cases (P = 0.02), while patients with occult CNS disease (FCM+/CC-) displayed intermediate OS rates, although differences did not reach statistical significance. Conclusions: The presence of occult CNS involvement at diagnosis in patients with NHL at high risk of CNS disease is associated with a higher probability of CNS relapse.
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