Cryoglobulins are present in blood in which of the following clinical scenarios
Macroglobulinaemia
SLE
Myeloma
All the above
Cryoglobulins if present in blood, form precipitates in patients serum when it is cooled down. They are a type of abnormal immunoglobulin disorder Ref: Textbook of Microbiology Baveja 5th ed Pg 102
Immunology