A rare case of proliferative glomerulonephritis with monoclonal IgG2 kappa deposit: a case report

BMC Nephrology

Table 1 Laboratory data

Blood
White blood cells	8620/μL	IgG	1120 mg/dL
Hemoglobin	10.5 g/dL	IgA	222 mg/dL
Platelet count	22.4 × 10⁴/μL	IgM	28 mg/dL
Creatinine	1.68 mg/dL	Free κ chain	64.7 mg/dL
Urea nitrogen	35 mg/dL	Free λ chain	46.9 mg/dL
Total protein	6.2 g/dL	IgG1	603 mg/dL
Albumin	3.1 g/dL	IgG2	364 mg/dL
HbA1c	6.4%	IgG3	68.7 mg/dL
Blood glucose level	111 mg/dL	IgG4	121 mg/dL
Total cholesterol	219 mg/dL	C3	95 mg/dL
D-Dimer	2.5 μg/mL	C4	27 mg/dL
Anti-streptolysin-O	21 U/mL	CH50	58 U/mL
Anti-streptokinase	27 U/mL	T-SPOT	Negative
β-d-Glucan	10.6 pg/mL	Cryoglobulin	Negative
HBs-antigen	Negative	Rheumatoid factor	Negative
HBs-antibody	Negative	Anti-nuclear antibody	80
HBc-antibody	Negative	Anti-DNA-antibody	Negative
HCV-antibody	Negative	MPO-ANCA	Negative
HIV-antibody	Negative	PR-3-ANCA	Negative
HTLV-antibody	Negative	Anti-GBM antibody	Negative
CRP	0.23 mg/dL	Serum protein- electrophoresis	Normal-Pattern
Urinalysis
Proteinuria	4+
Protein	6.37 g/day
Occult blood	3+
Red blood cell	10–19/HPF
Bence–Jones protein	Negative
α1-Microglobulin	44 mg/L
N-Acetyl-β-d-glucosaminidase	60.6 U/L

Abbreviations: CH50, CRP, C-reactive protein, GBM, HbA1c, glycosylated hemoglobin A1cHPF, high-power field, MPO-ANCA, PR3-ANCA, T-SPOT

ISSN: 1471-2369