Noninfectious mixed cryoglobulinaemic glomerulonephritis and monoclonal gammopathy of undetermined significance: a coincidental association?

Table 1 Demographic and renal clinical features at time of renal biopsy

Patient	Age (Years)	Sex	Extrarenal clinical features	Comorbid conditions	Urine studies			Serum studies
Patient	Age (Years)	Sex	Extrarenal clinical features	Comorbid conditions	Red cells	PCR (< 30 mg/mmol)	ACR (< 3.5 mg/mmol)	Creatinine (μmol/L)	eGFR (mL/min per 1.73 m²)^a	Albumin (3.5-5 g/dL)	C3 (0.9–1.8 g/L)	C4 (0.16–0.5 g/L)	ANA/SSA/SSB
1	47	F	Purpura, arthritis	pSS	Pos	70	33	256	18	2.6	0.46	< 0.03	Pos
2	60	F	Purpura, benign lymphadenopathy	pSS, CC	Pos	126	75	292	15	3.2	1.1	0.27	Pos
3	66	M	–	–	Pos	86	55	186	35	2.7	0.76	< 0.03	Neg
4	47	F	Purpura, arthritis	pSS, hypoGG	Pos	134	–	80	70	3.1	1.27	< 0.03	Pos

PCR protein creatinine ratio; ACR albumin creatinine ratio; eGFR estimated glomerular filtration rate; ANA antinuclear antibody; SSA anti-Ro; SSB anti-La; pSS primary Sjögren’s syndrome; CC cholangiocarcinoma; hypoGG hypogammaglobulinaemia
^a Modified diet in renal disease (MDRD)

ISSN: 1471-2369