[Simultaneous occurrence of extra-abdominal fibromatosis and post-traumatic keloid]

The report deals with the clinical features of a 26-year-old man with the extraabdominal form of deep fibromatosis, which became manifest at the age of 18 years as acute ileus caused by diffuse intraabdominal fibromatous tumours. In the later course of the disease extensive fibromatous lesions developed, mainly at the skin. In addition, multiple keloids occurred after excision or after negligible traumas. The pathogenetic events of the clinical picture described may be linked to the activation of mesenchymal cells leading to the generation of either fibromatous tumours or posttraumatic keloids.