https://www.leukoformula.com/en/authors/oleg-kononov/Recent content in Kononov Oleg Alexandrovich on LeukoformulaHugoen-USMon, 19 Feb 2024 17:30:00 +0300https://www.leukoformula.com/en/post/hook-effekt-pri-opredelenii-igg-pri-15851/Mon, 19 Feb 2024 17:30:00 +0300https://www.leukoformula.com/en/post/hook-effekt-pri-opredelenii-igg-pri-15851/<p>❗Falsely normal IgG in a patient with IgG myeloma. ✅A 60-year-old male patient with a classic laboratory pattern suspicious for multiple myeloma: hemoglobin 66 g/L, ESR 100 mm/hour, total protein 160 g/L. Plasma cells constituted 62% in the bone marrow aspirate. Thus, the diagnosis of multiple myeloma is beyond doubt. Markedly expressed hyperproteinemia is noteworthy, however, the laboratory authorizes the following results for total immunoglobulins: 👉IgG 13.45 g/L; 👉IgA 0.18 g/L; 👉IgM 0.09 g/L.</p>