Related Experiment Video
Updated: May 15, 2026

Use of Hematopoietic Stem Cell Transplantation to Assess the Origin of Myelodysplastic Syndrome
Published on: October 3, 2018
Systemic inflammation with myelodysplastic features: VEXAS syndrome
Mohamed M Khamis1, Iqra M Bhatti2, Deepthi Busayavalasa3
1Internal Medicine, Mercy Hospital St. Louis, St. Louis, Missouri, USA MOHAMED.KHAMIS@mercy.net.
VEXAS syndrome, a condition in older men, presents with inflammation and blood count issues. Early molecular testing and combined therapies are crucial for managing this rare autoinflammatory disorder.
Area of Science:
- Hematology
- Immunology
- Genetics
Background:
- Older men can present with complex symptoms including anemia, inflammation, and features resembling giant cell arteritis.
- Refractory inflammation and cytopenias despite standard treatments necessitate exploring rarer underlying conditions.
Purpose of the Study:
- To report a case of VEXAS syndrome in an elderly male.
- To highlight diagnostic challenges and effective management strategies for VEXAS syndrome.
Main Methods:
- Clinical presentation analysis of an 80s male with refractory anemia and inflammation.
- Targeted gene sequencing to identify somatic mutations.
- Treatment response assessment with ruxolitinib and azacitidine.
Main Results:
- A somatic UBA1 p.Met41Thr mutation was identified, confirming VEXAS syndrome.
- Ruxolitinib and azacitidine stabilized inflammatory markers and allowed steroid reduction.
- While treatment improved systemic symptoms, transfusion-dependent anemia persisted.
Conclusions:
- VEXAS syndrome should be suspected in older men with overlapping vasculitic and myelodysplastic features.
- Molecular testing is vital for diagnosing VEXAS, even with subtle bone marrow vacuoles.
- Multidisciplinary care integrating immunomodulators and clonal-directed therapies is essential for optimal VEXAS management.
Related Concept Videos
Differentiation of Common Myeloid Progenitor Cells
Disorders of Leukocytes
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune system...
Endocarditis II: Clinical Features of Infective Endocarditis
Graves Disease II: Pathophysiology
Inflammatory Response I: Vascular and Cellular
Cytotoxic Edema: Pathophysiology