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Case Reports
, 9 (12), 890-7

Aortic Intimal Sarcoma With Embolic Metastases

Case Reports

Aortic Intimal Sarcoma With Embolic Metastases

E P Wright et al. Am J Surg Pathol.

Abstract

A 46-year-old woman died from massive bowel infarction. At autopsy, a primary sarcoma was found growing along the intimal surface of the aorta at the level of the celiac axis. Tumor emboli were found in distal aortic branches and most abdominal organs. Immunoperoxidase for Factor VIII and electron microscopy (EM) did not support an endothelial origin. EM showed myofibroblastic differentiation. Review of the literature yields an array of diagnostic histologic terms for these tumors, hampering case comparison. The literature does suggest, however, that the clinical presentation of these rare neoplasms correlates nicely with the location and gross morphology of the lesion. We therefore propose a clinicopathologic classification, categorizing the lesions as intimal (obstructive and nonobstructive) and mural. The former are typically pleomorphic sarcomas and are probably of myofibroblastic origin, whereas the latter are usually leiomyosarcomas or fibrosarcomas that probably originate in the media or adventitia.

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