感染性動脈瘤是因動脈瘤之動脈壁因細茵感染而產生病灶。鎵－67可做全身掃描，?偵側感染病灶之良好工具。作者報告一個以鎵－67造影檢查發現感染性動脈瘤之病例。一位76歲之男性因發燒及背痛而住院檢查。鎵－67造影檢查發現在腹主動脈之位置有管狀的異常放射活性。電腦斷層掃描發現一個腹主動脈瘤。綜合臨床症狀，實驗室檢查及影像檢查發現，可以確定感染性動脈瘤之診斷。

Infected aneurysm is defined as a lesion of the arterial wall due to bacterial contamination. The authors show a distinctive scintigraphic appearance of infected aneurysm. A 76-year-old man was admitted to the hospital because of fever and back pain. 67Ga scan showed abnormal concentration in the region corresponding to the anatomical location of the abdominal aorta. Contrast-enhanced CT scan of the mid abdomen revealed an infra-renal aortic aneurysm.