数码坏疽常见于伴有或不伴有叠加感染的周围血管受损的糖尿病患者。术前实验室值和放射线图像对于确定正确的行动方案非常重要。同样重要的是进行彻底的病史采集，以确认或排除可能加重或诱发数字坏疽发展的系统实体和既往病症。一名糖尿病患者出现了一种罕见且不寻常的指坏疽病例，因为他在临床上有强烈的足部脉搏。术前检查发现怀疑患有红细胞增多症，随后得到证实。患者接受了几天的静脉切开术，直到他的血红蛋白和血细胞比容水平降至最佳水平，然后才进行手指截肢。他随后顺利康复，目前肿瘤学/血液学同事正在密切跟踪他，并定期进行静脉切开术。

Digital gangrene is frequently encountered in patients who have diabetes with peripheral vascular compromise, with or without superimposed infection. Preoperative laboratory values and radiographic images are important to determine a proper course of action. Equally important is a thorough history taking to confirm or rule out systemic entities and preexisting conditions that can aggravate or predispose one to the development of digital gangrene. A patient with diabetes presented with a rare and unusual case of digital gangrene, as he clinically had strong pedal pulses. Preoperative workup revealed a suspicion of polycythemia, which was subsequently confirmed. The patient underwent several days of phlebotomy until his hemoglobin and hematocrit levels were brought down to optimized levels before a digital amputation was performed. He went on to heal uneventfully, and he is currently being closely followed by oncology/hematology colleagues with periodic phlebotomy.