Uterine intravenous leiomyomatosis a rather rare pathologic condition, and a total of 139 cases have appeared in the English literature. Although two proposals for the histologic origin, uterine lyomyoma itself and/or vascular smooth muscle, have been widely accepted, the precise histogenesis still remains unclear. The additional 140th case of intravenous leiomyomatosis is described, and a third postulation for the histogenesis is proposed.
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Adv Anat Pathol
January 2025
Department of Pathology, University of Michigan-Michigan Medicine, Ann Arbor, MI.
Uterine smooth muscle neoplasms are a biologically and clinically heterogeneous group of tumors. Morphology is the cornerstone of pathologic diagnosis of these tumors, and most are readily classified as benign or malignant on the basis of routine histologic examination. However, rare subsets-including intravenous leiomyomatosis, benign metastasizing leiomyoma, and disseminated peritoneal leiomyomatosis-have a capacity for extrauterine spread despite benign cytomorphology.
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Department of Pathology, Esic Medical College and Hospital, Faridabad, Haryana, India.
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