PMC7744702_01
Multiplanar reconstruction images of computed tomography scan. (A) Persistent sciatic artery aneurysm (PSAA) in the right thigh three years before surgery. The maximum diameter of the PSAA was 78 mm. The PSAA was thrombosed, and its distal artery was occluded and scarred (arrow). (B) On admission. The size of the PSAA had increased, and it had become multilobulated. There was no blood flow in the PSAA, and the fat density around it had increased. The drainage area is represented by a solid arrow. The thrombus in the proximal portion of the aneurysm was organised and hard (bar). (C) Sixteen months after the surgery. The PSAA had shrunk, and there was no evidence of the recurrent infection. The proximal dilated portion of the PSAA also had shrunk slightly, and two small thrombosed aneurysms remained (arrow).
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PSAA and increased fat density (Fig. 1A and B). Purulent liquid was aspirated from the PSAA via ultrasound guided exploratory puncture, and Peptostreptococcus micros was detected in the bacterial culture. After incising the PSAA wall, the infected thrombus between the organised structure of the proximal side of the PSAA and the distal scarred vessel was removed (Fig. 1B). Sixteen months after the surgery, the patient's condition remained good and CT revealed that the size of the PSAA had decreased, and there was no recurrent infection (Fig. 1C).