Investigation
In September 2019, the patient was admitted to the Department of
Oncohematology of the National Research Oncology Center LLP (NROC).
According to the results of the examinations, the following was noted:
the secretion of paraprotein represented by Lambda chains (the
concentration of paraprotein is 0.4 g (0.7%)) and Bens-Jones protein in
urine; according to the cytological study of bone marrow, an increase in
the number of plasma cells was noted up to 23%. The patient also had
CRAB (mnemonic abbreviation: hyperCalcemia; Renal insufficiency; Anemia;
Bone lesions) symptomatology (moderate anemia, a widespread
other-destructive process with a soft tissue component). Considering the
above, the patient was diagnosed with multiple myeloma (6).