[A case of Anaphylactoid purpura suggested to Empedobacter (flavobacterium) brevis infection concerned].

The patient was an 83 Year-old woman with purpura on her right foot and on both crura starting from the end of November 2005. First, she took medical advice from a nearby doctor, but it did not improve. Since blisters were formed besides purpura, she visited Nagoya City Midori Municipal Hospital. When she visited, she had many purpura on her both legs, her right lower crus and her right foot was swelling with redness, blisters and erosion. Histopathological finding showed leukocytoclastic vasculitis, deposit of fibrin and hemorrhage. Only Empedobacter brevis was cultured from right feet lesion. This strain was sensitive to minocycline hydrochloride. Her purpura and right foot swelling were improved just after internal use of minocycline hydrochloride, so Empedobacter brevis infection was speculated to be a trigger, or at least concerned to this Anaphylactoid purpura.