[To a margin reduction in the dermatofibrosarcoma protuberans? Retrospective study of 34 cases].

Introduction: The dermatofibrosarcoma protuberans (DFSP) is a rare but not exceptional tumour. Surgical treatment should contain a wide excision to avoid local recurrence.
Material and Method: We report a retrospective study of 34 cases treated by the same team from 1994 to 1999. In this series, only 4 cases (12%) presented recurrences after previous treatment by the other teams. In all cases, surgical resection was performed with 3 cm lateral margin and a disease free anatomic layer removed with the tumour.
Results: The mean of follow up was 60 months. There was no recurrence case in our 34 patients during this period. We compare our results with those, from others teams described in international literature since 1951. Margins and results are similar with some teams who practice the Mohs surgery.
Conclusion: These data are in favour of a reduction of the lateral margins in classical surgical procedure of DFSP. They should be consolidated by a follow-up in longer term with a prospective study.