[Association between mesenteric phlebosclerosis and Chinese herbal medicine intake].

Background: Mesenteric phlebosclerosis (MP) is a relatively rare disease of the colon. An association between MP and Chinese herbal medicine intake has recently been recognized.
Subjects and Methods: In the present study, we investigated the association between MP and Chinese herbal medicine intake in 42 patients, including those reported in the literature as well as those treated by us.
Results: Approximately 90% patients treated by us reported a history of Chinese herbal medicine intake, particularly kamishoyosan, orengedokuto, and sanshishi (gardeniae fructus), the lattermost being consumed by the majority of patients as a crude herbal medicine.
Discussion: Several MP patients report a history of Chinese herbal medicine intake. Furthermore, symptoms are exacerbated in MP patients who continue to consume the medicine after onset. Interestingly, MP was reported to develop in a married couple who had consumed the same Chinese herbal medicine for a prolonged period. These findings suggest that the intake of Chinese herbal medicine, particularly sanshishi, is strongly associated with MP development.