Abstract: Isolated pyogenic pancreatic abscess（IPPA） is a relatively rare disease with clinical manifestations of abdominal pain，fever，and elevated white blood cell（WBC）count.In the case of infections such as tuberculosis and salmonella，especially when it is found in diabetic patients，it is necessary to be alert to IPPA.The etiology and pathogenesis of IPPA are still unclear.This article reported a patient who was diagnosed with IPPA in the Department of Gastroenterology of Hebei General Hospital on March 26，2018.The clinical pathological data and treatment process were retrospectively analyzed.It was found that IPPA was easy to be misdiagnosed as pancreatic head cancer or pancreatic cyst.It was considered that it was necessary to combine the abdominal enhanced computed tomography，tumor markers and pathological features of endoscopic biopsy to further confirm the diagnosis of IPPA，so that it could be early diagnosed and treated avoiding misdiagnosis and missed diagnosis.

Key words: Abscess；Pancreas；Endoscopic ultrasonography；Diabetes mellitus, type 2；Focal infection；Diagnosis

摘要： 孤立性化脓性胰腺脓肿是一种较为罕见的疾病，临床表现为腹痛、发热，伴白细胞计数升高。在有结核病、沙门菌等感染时，尤其在糖尿病患者中发现胰腺肿块时需警惕该病。目前孤立性化脓性胰腺脓肿的病因和发病机制尚不明确。本文报道了1例2018-03-26在河北省人民医院消化科住院发现孤立性化脓性胰腺脓肿患者，并对其临床病例资料及治疗过程进行了回顾性分析，总结出孤立性化脓性胰腺脓肿诊治过程中易误诊为胰头癌或胰腺囊肿，认为需结合腹部增强CT、肿瘤标志物及超声内镜穿刺活检病理特征进一步明确诊断，从而早期诊断及治疗，以免误诊、漏诊。

关键词: 脓肿；胰腺；超声内镜；糖尿病, 2型；病灶感染；诊断