Usefulness of ultrasonography in the diagnosis of ischaemic fasciitis.

We present the case of a 68-year-old woman who developed a painful subcutaneous tumour in the sacral region. Histological examinations revealed a characteristic zonal pattern with a central zone of liquefactive necrosis, surrounded by proliferated atypical fibroblasts and prominent vessels, indicating ischaemic fasciitis. We demonstrate that the characteristic features of ischaemic fasciitis revealed by ultrasonography are strongly associated with those revealed by pathological findings. We thus believe that ultrasonography is a valid tool for making an accurate diagnosis of ischaemic fasciitis.