A case of disseminated perforating necrobiosis lipoidica.

Perforating necrobiosis lipoidica (PNL) is a granulomatous inflammatory skin disease that usually occurs in patients with diabetic. We present a case of a female patient affected by a disseminated form of necrobiosis lipoidica.

Platelets: new players in the mucosal scenario of inflammatory bowel disease.

Besides their classical haemostatic task, platelets are now recognized as novel cells deeply involved in inflammation. Compelling evidence support their role as active player in mucosal tissue injury that occurs in Crohn's disease and ulcerative colitis. In both forms of inflammatory bowel disease platelets contribute to microvascular endothelial activation and recruitment of inflammatory cells, thus fostering and amplifying mucosal inflammation.