En 50 år gammel kvinne med høyt hemoglobinnivå og jernmangel

Autor: Jonas Holte, Helge Stalsberg, Odd Kildahl-Andersen
Rok vydání: 2009
Předmět:
Zdroj: Tidsskrift for Den norske legeforening. 129:1878-1881
ISSN: 0029-2001
DOI: 10.4045/tidsskr.08.0510
Popis: BACKGROUND Elevated haemoglobin and erythrocytosis are frequent causes for investigation. MATERIAL AND METHODS A 50-year-old woman with elevated haemoglobin and erythrocytosis was referred to our hospital for investigation. RESULTS AND INTERPRETATION She had elevated serum erythropoietin and iron deficiency. Mutational status of the JAK2 gene was negative with respect to polycythemia vera, and no secondary reasons for polycythemia - including tumours - were revealed. A bone marrow biopsy and bone marrow smear showed a moderately increased number of lambda- positive monoclonal plasma cells, and small amounts of lambda light chains were detected in the urine. Serum electrophoreses showed no gammopathy. The reason for her elevated haemoglobin could be an erythropoietin-producing tumour or an idiopathic erythrocytosis based on a mutation in exon 12 of the JAK2 gene. Investigation of her plasma cells revealed a 10-fold increase in erythropoietin mRNA expression, indicating the reason for her elevated serum erythropoietin and haemoglobin values.
Databáze: OpenAIRE