Myelodysplastic neoplasms with repeating TAFRO syndrome-like symptoms.

TAFRO syndrome is a systemic disease characterized by thrombocytopenia, anasarca, fever, systemic inflammation, reticulin fibrosis, renal insufficiency, and organomegaly. Although the pathogenesis of TAFRO syndrome remains unknown, it may be associated with cytokine storm and abnormal immune function. Herein, we present a case of a 65-year-old man who was diagnosed with myelodysplastic neoplasms (MDS) with repeating TAFRO syndrome-like symptoms. At ages 59 and 63 years, he developed TAFRO syndrome and was treated with immunosuppressive therapy, which improved these symptoms. At age 65 years, he had TAFRO syndrome-like symptoms with pancytopenia, chromosomal abnormalities, and dysplasia. The patient was subsequently diagnosed with MDS and treated with methylprednisolone, rituximab, bortezomib, and tocilizumab. His MDS-related and TAFRO syndrome-like symptoms simultaneously improved following treatment. Although the patient was not diagnosed with MDS at the first and second events, chromosomal abnormalities were detected, revealing increased clonal cells. MDS can be complicated by immune disorders associated with increased malignant clonal cells. Additionally, patients with MDS exhibit hypercytokinemia, including interleukin-6 and vascular endothelial growth factor. This case indicates that increased clonal cells and hypercytokinemia caused by MDS may lead to abnormal immune function and induce TAFRO syndrome-like symptoms.