Chiara Fabbroni, Adult Mesenchymal Tumor Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
Sara Cingarlini, Department of Clinical and Experimental Medicine, Università degli Studi di Verona, Verona, Italy
Roberta Sanfilippo, Adult Mesenchymal Tumor Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy


In February 2007, a 50-year-old male patient was diagnosed with well-differentiated/dedifferentiated liposarcoma by biopsy of a retroperitoneal mass. He underwent surgery with en bloc excision of the mass and of the surrounding tissue (right colon, kidney, adrenal glands, and psoas muscle). Three years later, the patient experienced an abdominal relapse with a single nodule treated with surgery. However, 1 year later, a new multifocal abdominal relapse was detected.