The acute-phase response and associated lipoprotein abnormalities accompanying lymphoma.

Lipoprotein abnormalities seen in patients with inflammatory diseases are thought to develop secondary to circulating cytokines and the accompanying acute-phase response. Patient's with lymphoma may develop similar lipoprotein abnormalities but the mechanism is unclear. We report a patient with B-cell lymphoma who presented with an HDL cholesterol level of 3 mg dl-1, an ApoA level of 17.4 mg dl-1, elevated triglyceride level (272 mg dl-1) and an elevated ApoB level of 156 mg dl-1. Density gradient analysis of the patient's lipoproteins demonstrated a virtual absence of an identifiable HDL particle. Serum amyloid A and C-reactive protein were also elevated. All of the lipoprotein abnormalities resolved with chemotherapy and resolution of the acute-phase response. The acute-phase response may be associated with striking lipoprotein abnormalities in a subset of patients with lymphoma. Lymphoma should be included in the differential diagnosis of patients with hypertriglyceridaemia and low HDL cholesterol.