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Acute myeloid leukemia associated with necrotizing temporal arteritis
Kenneth J Warrington1, Bernd W Scheithauer, Clement J Michet
1Division of Rheumatology, Mayo Clinic, Rochester, Minnesota 55905, USA.
The Journal of Rheumatology
|April 3, 2003
Summary
Giant cell arteritis (GCA) typically presents with headache and tenderness. However, this case highlights isolated necrotizing arteritis in acute myeloid leukemia, emphasizing the need for further vasculitis evaluation when GCA is suspected but atypical.
Area of Science:
- Rheumatology
- Hematology
- Pathology
Background:
- Giant cell arteritis (GCA) classically presents with new onset headache, temporal artery tenderness, and elevated inflammatory markers.
- Diagnosis of GCA is typically confirmed by characteristic temporal artery biopsy findings.
Observation:
- A patient presented with symptoms suggestive of GCA.
- Temporal artery biopsy revealed isolated necrotizing arteritis, not classical GCA.
- The patient was diagnosed with acute myeloid leukemia.
Findings:
- The patient's presentation mimicked GCA but histology showed isolated necrotizing arteritis.
- Acute myeloid leukemia was identified as an underlying condition.
- This suggests a paraneoplastic or systemic vasculitis rather than idiopathic GCA.
Implications:
- Temporal artery biopsy is crucial for accurate GCA diagnosis.
- Atypical histology or incomplete treatment response in suspected GCA warrants further investigation for alternative diagnoses like paraneoplastic vasculitis.
- This case underscores the importance of considering hematologic malignancies in the differential diagnosis of vasculitis.