Sweet's syndrome in a patient with acute ulcerative colitis: presentation of a case and review of the literature.

Inflammatory bowel disease includes ulcerative colitis and Crohn's disease. Etiology is unknown and acute exacerbations and remissions are frequent. Pathogenesis is also unclear. Extra-intestinal features have been described and several skin manifestations have been associated with the disease. Some of them can precede bowel involvement but others used to acommpany acute exacerbations or appear during remission periods of intestinal disease. Among these skin manifestations some acute dermatosis like neutrophilic dermatosis have been reported. Sweet's syndrome, pyoderma gangrenosum, erythema elevatum diutinum, subcomeal pultular dermatosis, pyostomatitis vegetans, and vesiculopustular eruption have been proposed to represent manifestations along a continuum of neutrophilic dermatosis [1]. Nevertheless, ulcerative colitis is rarely associated with Sweet's syndrome. We report a case of acute onset of ulcerative colitis and Sweet's syndrome focusing into its pathophysiology and reviewing the literature.