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Int J Surg Case Rep. 2019;54:51-54. doi: 10.1016/j.ijscr.2018.10.083. Epub 2018 Nov 22.

Clostridium septicum: A usual suspect? Aortic rupture following right hemicolectomy: A case report.

Author information

1
Eastern Clinical School, Eastern Health, Melbourne Australia. Electronic address: samuelcresser@gmail.com.
2
Department of Vascular Surgery, Eastern Health, Melbourne Australia.
3
Department of Surgery, Epworth Health, Melbourne Australia; Gastrointestinal Clinical Institute, Epworth HealthCare, Melbourne Australia.

Abstract

INTRODUCTION:

There is a known association between Clostridium Septicum, mycotic aneurysm and colon neoplasm.

CASE PRESENTATION:

We report the case of a 90 year old female admitted with abdominal pain to the general surgery unit. Admission CT scan demonstrated a thick walled caecum and pericaecal inflammation suspicious for a perforated carcinoma. This was subsequently confirmed at colonoscopy with biopsy demonstrating a poorly differentiated adenocarcinoma. A laparoscopic right hemicolectomy was completed the following week after perioperative workup and intravenous antibiotic therapy. On the 9th postoperative day, fever and rising inflammatory markers prompted repeat abdominal CT scan which demonstrated a mycotic aneurysm of the upper abdominal aorta. After discussion with the vascular surgery and infectious diseases team, along the patient and family, the decision was made to palliate. The patient died at home from presumed spontaneous rupture two weeks after discharge.

DISCUSSION:

Mycotic aneurysm in colonic malignancy is a rare and often lethal complication. C. Septicum is causative in over 70% of cases with concomitant colonic malignancy.

CONCLUSION:

Mycotic aneurysm should be considered in any deteriorating patient with concomitant colonic malignancy.

KEYWORDS:

Aneurysm; Case report; Colonic neoplasm; Infected

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