Over the past 7 years, eight patients with splanchnic artery aneurysms and pseudoaneurysms were studied and treated. Transcatheter embolization resulted in occlusion of the lesions in all eight patients. Potentially risky and difficult surgery was avoided completely in four patients. Three patients had elective surgery at a later date when their condition was more stable. The remaining patient had definitive surgery after embolization. Transcatheter embolization should be the initial treatment of choice in splanchnic artery aneurysms and pseudoaneurysms.
Esophageal intramural pseudodiverticulosis (EIP) is a rare condition of unknown etiology. It is characterized by multiple, small, flaskshaped outpouchings in the esophageal wall. Involvement may be segmental or diffuse. Since this entity was first reported in 1960, there have been 43 cases described in the English literature. These cases are reviewed and six additional cases are reported with emphasis on clinical and radiographic parameters of this entity.
Persistence of the sciatic artery (SA) is a rare vascular anomaly, resulting from lack of regression of an embryonal artery to the lower extremity. Forty-nine cases have been published in the world literature since 1832. The persistent sciatic artery (PSA) is particularly prone to undergo aneurysm formation or atherosclerosis. It originates from the internal iliac artery, courses in close proximity to the sciatic nerve, and provides the main supply to the popliteal artery because a hypoplastic superficial femoral artery (SFA), contributing only collaterals to the knees, is usually associated with a PSA. This anomaly should be kept in mind in the clinical assessment of a pulsatile gluteal mass. It also presents a potential hazard during hip and renal transplant surgery.
Three patients with arteriovenous shunts placed for hemodialysis had massive swelling of one of the upper extremities. Venograms showed marked stenoses of the ipsilateral brachiocephalic or subclavian veins. Percutaneous transluminal angioplasty was used to correct the stenoses and resulted in dramatic clinical improvement.
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