Idiopathic mesenteric atherosclerosis (IMP) is a rare entity, occurring almost exclusively in Asian populations and characterized by calcification of the mesenteric veins and wall thickening of the right hemicolon. Chronic and frequent ingestion of biochemicals and toxins is thought to be associated with IMP.

The etiology and pathogenesis of spontaneous mesenteric atherosclerosis remain unclear, existing studies suggest that long-term intake of herbal medicines or medicinal wine containing the bactericidal agent geniposide is recognized as one of the main causes of spontaneous mesenteric atherosclerosis.