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Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
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Diagnostic dilemma: drug-induced vasculitis versus systemic vasculitis
Indira Acharya1, David S Weisman2, Lanaya Williams Smith3
1Department of Internal Medicine, MedStar Union Memorial Hospital, Baltimore, Maryland, USA.
BMJ Case Reports
|July 10, 2023
Summary
Drug-induced vasculitis, though rare, can affect kidney and lung tissues. This case highlights hydralazine-induced vasculitis presenting as a pulmonary-renal syndrome.
Area of Science:
- Nephrology
- Rheumatology
- Pathology
Background:
- Drug-induced vasculitis is a rare condition causing inflammation and necrosis of blood vessel walls.
- Diagnosis is challenging due to overlapping clinical, immunological, and pathological features with systemic vasculitis.
- Tissue biopsy is crucial for diagnosis and treatment guidance.
Observation:
- A patient presented with symptoms suggestive of vasculitis affecting both pulmonary and renal systems.
- The patient had a history of hydralazine use.
- Immunological workup revealed antineutrophil cytoplasmic antibodies (ANCA)-positive status.
Findings:
- The patient exhibited pauci-immune glomerulonephritis, a key indicator of kidney involvement.
- Alveolar hemorrhage was identified, confirming pulmonary involvement.
- These findings, correlated with clinical presentation and hydralazine use, pointed towards drug-induced vasculitis.
Implications:
- This case underscores the importance of considering drug-induced vasculitis in patients with pulmonary-renal syndrome.
- Correlating pathological findings with clinical history, including medication use, is essential for accurate diagnosis.
- Early recognition and withdrawal of the offending drug are critical for managing drug-induced vasculitis.
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