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Retroperitoneal bleeding due to a ruptured aneurysm of the middle colic artery
Insights
A ruptured middle colic artery aneurysm caused severe bleeding in a 51-year-old man. Post-surgery, multiple colic artery aneurysms were found, highlighting rare mesenteric artery aneurysm occurrences.
Area of Science:
- Vascular Surgery
- Gastrointestinal Medicine
- Radiology
Background:
- Splanchnic artery aneurysms (SAAs) are rare vascular conditions.
- Commonly affect renal, splenic, and hepatic arteries.
- Mesenteric artery aneurysms are infrequent, often linked to endoarteritis.
Observation:
- A 51-year-old male presented with abdominal pain and sudden, significant intraperitoneal hemorrhage.
- Rupture of the middle colic artery was identified as the cause.
- Surgical extirpation of the aneurysm was performed.
Findings:
- Postoperative angiography revealed multiple additional aneurysms in the colic artery.
- The exact etiology of the mesenteric artery aneurysms in this case remained unconfirmed.
- This case underscores the rarity of mesenteric artery aneurysms.
Implications:
- Highlights the importance of thorough vascular imaging in cases of suspected SAA.
- Suggests potential for multiple aneurysms even when a single rupture is identified.
- Contributes to understanding the diverse presentations of splanchnic artery aneurysms.
Abstract:
In a 51-year-old man the middle colic artery ruptured. The patient had abdominal pain for several days, and then suddenly, a considerable intraperitoneal bleeding occurred. The aneurysm was extirpated and in the postoperative angiogram, numerous aneurysms were detected in the colic artery. Splanchnic artery aneurysm mainly occurs in renal artery, splenic artery and hepatic artery, but rarely in the mesenteric artery. The pathogenesis of mesenteric artery aneurysms is usually mycotic false aneurysm from prior aortic endoarteritis. In the present case, the etiology of the aneurysm was not confirmed.