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J Clin Pathol 55:789-790 doi:10.1136/jcp.55.10.789
  • Case report

Spontaneous regression of acquired C1 esterase inhibitor deficiency associated with splenic marginal zone lymphoma presenting with recurrent angio-oedema

Table 1

Concentrations of complement components and C1 esterase inhibitor

Date C3 (g/l) C4 (g/l) C1 esterase inhibitor (g/l) C1q
Normal ranges: C3, 0.75–1.65 g/l; C4, 0.14–0.54 g/l; C1 esterase inhibitor, 0.15–0.35 g/l; C1q, 75–125%.
May 2000 1.12 0.04 0.13 47%
November 2000 1.06 0.04 0.13
August 2001 1.25 0.15 0.16 95%

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