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The non-ischaemic blue finger.
H S Khaira1, D Rittoo, R K Vohra
1Department of Surgery, University Hospital Birmingham NHS Trust, Raddlebarn Road, Selly Oak, Birmingham, UK.
Annals of the Royal College of Surgeons of England
|July 4, 2001
Summary
This study describes a benign finger discoloration condition that mimics digital ischemia. The condition resolves within a week without lasting effects, differing from true ischemia by sparing the fingertip.
Area of Science:
- Vascular Medicine
- Dermatology
- Internal Medicine
Background:
- Finger discoloration can indicate serious vascular issues.
- A subset of patients present with acute, painful blue/purple finger discoloration.
- This presentation can be mistaken for critical digital ischemia.
Purpose of the Study:
- To characterize a specific, benign finger discoloration syndrome.
- To differentiate this condition from digital ischemia.
- To inform primary care physicians about this non-pathological presentation.
Main Methods:
- Case series of 11 patients presenting with acute finger discoloration.
- Clinical examination including vital signs, auscultation, and Doppler studies.
- Laboratory investigations including complete blood count, C-reactive protein, vasculitis screen, and coagulation profile.
Main Results:
- 11 patients (9 female, 2 male) experienced acute, painful blue/purple finger discoloration, sparing the tip.
- Symptoms resolved spontaneously within 4-7 days with no sequelae.
- All examinations and most laboratory tests were normal, ruling out significant vascular or systemic disease.
- No common etiological factor was identified, though the condition predominantly affected women.
Conclusions:
- A benign, self-limiting finger discoloration syndrome exists, distinct from digital ischemia.
- This condition, while alarming, has a favorable prognosis and does not indicate underlying vascular compromise.
- Awareness among healthcare professionals is important to avoid misdiagnosis and unnecessary investigations.