Table 1

Clinical	Serological
Persistent parotid gland enlargement	Mixed monoclonal cryoglobulinemia
Splenomegaly	Low serum C4 levels
Lymphadenopathy	Serum or urine monoclonal bands
Palpable purpura	CD4 + T lymphocytopenia^a
Leg ulcers	Neutropenia^a
Peripheral neuropathy	High serum β2 microglobulin^a
Previous low-dose irradiation or chemotherapy	Low serum IgM levels^a
	Disappearance of previously positive rheumatoid factor

^aΙndicates detected findings in the present case.