Long-term survival in a surgically treated non-encapsulated mediastinal primary liposarcoma. Diagnostic utility of core-needle biopsy for mediastinal tumors.

Primary liposarcomas of the mediastinum are uncommon tumors. Only six cases of mediastinal liposarcomas with survival after surgery longer than five years have been reported and only one of these was a non-encapsulated tumor. We report a new case of non-encapsulated primary liposarcoma of the mediastinum with long-term survival. The diagnosis was carried out using a CT-guided core-needle biopsy. We emphasize the utility of this technique to diagnose this kind of mediastinal tumors. A non-encapsulated primary liposarcoma of the mediastinum surgically treated with long-term survival is reported. We emphasize the diagnostic utility of CT-guided core-needle biopsy for the tumors.