Cryoglobulins are present in blood in which of the following clinical scenarios: (A) Macroglobulinaemia, (B) SLE, (C) Myeloma, (D) All the above
Answer is D. 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