[Vesiculopustular eruption and Sweet syndrome associated with 2 exacerbations of ulcerous colitis in a 76-year-old woman].

The concept of acute febrile neutrophilic dermatosis (Sweet's syndrome) has evolved and expanded to include, under the denomination of neutrophilic dermatosis (ND), both pyoderma gangrenosum and the intestinal bypass syndrome, with or without intestinal bypass, vesicular and pustular rash associated with ulcerative colitis (UC), and Sweet's syndrome itself. Among the skin lesions associated with UC several types of vesicular and pustular rash have been reported and, very rarely, the association of UC and Sweet's syndrome has been reported. We report a female with UC who developed a vesicular and pustular rash associated with an exacerbation of her colonic disease. Two years later she developed a characteristic Sweet's syndrome coincident with another exacerbation of UC. The concurrence of two different forms of ND associated with successive exacerbations of UC supports the concept of ND as an individual condition with several types of clinical presentation.