Abstract
BACKGROUNDThe liver as a primary site of lymphoma is rarely seen, they are usually misdiagnosed as hepatocellular carcinoma, etc. In 2017, a review of primary hepatic lymphoma (PHL) was done in immunocompetent diffuse large B-cell lymphoma (DLBCL) patients. Yet questions that include treatment choosing or susceptibility of immunoincompetent patients remain disputable. AIMTo investigate the clinical characteristics of patients with PHL.METHODSWe collected PHL cases on PubMed, and extracted demographic and clinicopathological data to perform a systematic analysis. Survival analysis regarding age, lactate dehydrogenase (LDH), liver function abnormality (LFA), and treatment modalities were conducted. The Kaplan-Meier method and Cox regression were used to identify risk factors. RESULTSOf 116 PHL patients with DLBCL (62.1%) as the most common subtype. Biopsy methods before surgery produced a 97% positive rate. Progression-free survival (PFS) was significantly shortened in patients with elevated LDH [Hazard ratio (HR): 3.076, 95% confidence interval (CI): 1.207-7.840, P = 0.018] or LFA (HR: 2.909, 95%CI: 1.135-7.452, P = 0.026). Univariate Cox regression analysis suggesting that LDH, liver function, B symptom, hepatosplenomegaly, and lesion were significantly associated with PHL patients survival (P < 0.05). Heavy disease burden was observed in deceased patients. A few PHL patients (3.4%) have slightly higher tumor markers.CONCLUSIONPHL patients with elevated LDH and LFA tend to have shorter PFS. Biopsy before treatment in undecided patients with no tumor markers exceeds upper limits has the most essential clinical significance, especially in immunoincompetent patients.
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