A 52 year old woman with marginal zone lymphoma developed recurrent episodes of angio-oedema and was found to have C1 esterase inhibitor deficiency. She declined chemotherapy for the lymphoma. Fourteen months after her initial presentation she was found to be in partial remission, and this was confirmed by peripheral blood film and bone marrow examinations. This was associated with normalisation of C1 esterase inhibitor, C1q, and C4 values. Regression of acquired C1 esterase inhibitor deficiency associated with spontaneous partial remission of lymphoma has not been reported previously.
- marginal zone lymphoma
- C1 esterase inhibitor
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