Collar-button abscess as a complication of infected hematoma in the setting of uncontrolled type 2 diabetes

Introduction: Collar-button abscesses are deep space infections of the hand. Case presentation: We present a case of a 66-year-old man who developed an acute collar-button abscess of the hand after a concrete bench fell onto the dorsal aspect of his hand. The hand abscess was managed successfully with intravenous antibiotics and operative intervention. Discussion: While such infections comprise a small percentage of hand infections, insufficient or delayed treatment results in permanent hand disfiguration and dysfunction. This case highlights an uncommon dorsal-to-volar pattern of hand abscess extension. Conclusion: Knowledge of the anatomy of the hand is essential to diagnosis and appropriate surgical management