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Cutaneous vasculitis associated with fluoroquinolones.

G Maunz¹, T Conzett, W Zimmerli

¹Medical University Clinic, Kantonsspital, 4410, Liestal, Switzerland.

|August 12, 2009

Summary

Cutaneous vasculitis can be a serious adverse drug reaction to fluoroquinolone antibiotics. Stopping the antibiotic often resolves the skin inflammation, but clinicians must be vigilant for this potentially fatal condition.

Area of Science:

Dermatology
Pharmacology
Internal Medicine

Background:

Cutaneous vasculitis involves inflammation of skin blood vessel walls.
It presents a broad differential diagnosis, including adverse drug reactions.
Antibiotic therapy is a common cause of drug-induced vasculitis.

Observation:

Three patients developed isolated cutaneous vasculitis during antibiotic treatment for bacterial infections.
All patients received fluoroquinolones (ciprofloxacin or levofloxacin) combined with other antibiotics.
Lesions resolved after discontinuation of the fluoroquinolone antibiotic.

Findings:

Fluoroquinolone-associated cutaneous vasculitis is a distinct clinical entity.
It can manifest as an isolated, self-limiting disorder.

Related Experiment Videos

In severe cases, it may be part of a systemic vasculitis or a life-threatening condition.

Leukocytoclastic small-vessel vasculitis was histologically confirmed in one patient.

Implications:

Clinicians must consider fluoroquinolone-associated cutaneous vasculitis in patients presenting with skin lesions during antibiotic therapy.
Prompt recognition and discontinuation of the offending fluoroquinolone are crucial for patient recovery.
Failure to identify and cease the antibiotic may lead to fatal outcomes.