Relapsed or refractory nongastric marginal zone B-cell lymphoma: multicenter retrospective analysis of 92 cases.
Over its long survival duration, marginal zone B-cell lymphoma (MZL) routinely involves frequent relapses. In this study, we conducted a retrospective analysis to identify the clinical features and outcomes of relapsed or refractory MZL. From 1995 to 2008, a total of 92 patients with relapsed MZL were retrospectively analyzed. The median age of our subjects was 53.5 years (range: 23-82 years). The most common primary sites of involvement were the orbit and ocular adnexa (28.3%) followed by the lymph node and lymphatic organs (23.9%), and multiple mucosa-associated lymphoid tissue (MALT) sites (13.0%). The median time to relapse from initial diagnosis was 25.5 months. Of the 53 patients with Stage I or II at diagnosis, 42 patients (79.2%) evidenced locoregional recurrence. Among these locoregional relapsed patients, 27 patients achieved CR (54.1%) or PR (18.9%). In addition to the 39 patients initially in advanced Stage III or IV, a total of 50 patients were in advanced stage at relapse. Among those patients with advanced stage at relapse, 44 patients were treated. The overall response rate was 54.5% (24 patients), with 18 CRs and 6 PRs. The median time to progression (TTP) was 34.1 months (95% CI: 11.3-56.9 months) and the estimated 5-year overall survival (OS) was 84.3%. The majority of them was controlled well with salvage treatment, and could achieve prolonged survival. However, patients' refractory to initial therapy and advanced relapse evidenced shorter TTP and OS. Thus, we need to consider more aggressive treatment in cases of refractory MZL or advanced relapsed MZL.
Oh
Sung Yong
SY
Department of Internal Medicine, Dong-A University College of Medicine, Busan, South Korea.
Kim
Won Seog
WS
Kim
Seok Jin
SJ
Kim
Jin Seok
JS
Kim
Sung-Hyun
SH
Lee
Dae Ho
DH
Won
Jong-Ho
JH
Hwang
In Gyu
IG
Kim
Min Kyoung
MK
Lee
Soon Il
SI
Kim
Jong Gwang
JG
Yang
Deok-Hwan
DH
Kang
Hye Jin
HJ
Choi
Chul Won
CW
Park
Jinny
J
Choi
Young Jin
YJ
Kim
Hyo Jung
HJ
Kwon
Jung Hye
JH
Suh
Cheolwon
C
Kim
Hyo-Jin
HJ
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003131:Combined Modality Therapy; D018450:Disease Progression; D018572:Disease-Free Survival; D019008:Drug Resistance, Neoplasm; D005260:Female; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000453:epidemiology* / Q000473:pathology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D009918:Orbital Neoplasms / Q000453:epidemiology / Q000473:pathology / Q000628:therapy; D011379:Prognosis; D012008:Recurrence; D056910:Republic of Korea / Q000453:epidemiology; D012189:Retrospective Studies; D016879:Salvage Therapy; D016896:Treatment Outcome; D055815:Young Adult