A resident’s sharp learning curve: Post-needle stick injury arteriovenous fistula of the finger

Iatrogenic vascular injuries can be encountered during diagnostic or therapeutic interventions. Traumatic arteriovenous fistulas (AVFs) occur due to penetrating injury involving contiguous arteries and veins. We report a case of a 27-year-old postgraduate trainee who presented with swelling over her left middle finger for 5 months following a needle prick injury at the same site 1 year back, which was diagnosed with ultrasound and dynamic magnetic resonance imaging angiography. Endovascular embolization is avoided in AVFs of the hand due to the risk of distal ischemia, and surgical excision with reconstruction is the preferred treatment.