title: Reducing surgical margins in dermatofibrosarcoma protuberans using the pathological analysis technique 'vertical modified technique': a 5-year experience.
abstract: BACKGROUND
  For the treatment of dermatofibrosarcoma protuberans (DFSP), wide surgical excision has been recommended, with 3-5-cm margins, including the first underlying clear fascia. Since 2006, a technical improvement in pathological analysis called the vertical modified technique (VMT) has allowed us to reduce the surgical margin without increased oncological risk.
  
  
  METHODS
  Between 2006 and 2011, 66 cases of DFSP were analysed in our hospital, using VMT. We reviewed patient records, considering the initial margin, total margin, number of surgeries and outcomes. Functional and aesthetic consequences were assessed by the surgeon and by the patients.
  
  
  RESULTS
  Mean initial margin for the first resection was 18 mm (10-30 mm). First resection allowed complete resection of the tumour in 52 cases (78.8%). Mean total surgical margin was 21.3 mm (10-60 mm). There were no cases of local tumour recurrence at a median follow-up of 30 months. Reconstruction was performed using direct sutures in 53 cases (80.3%), split-thickness skin grafts in six cases (9.1%), full-thickness skin grafts in five cases (7.6%) and flaps in two patients (3%). For 90.9% of the patients, the aesthetic result was acceptable, whereas 84.8% patients were satisfied with the functional result.
  
  
  CONCLUSIONS
  VMT reduces surgical margins and allows for extensive analysis of margins. This technique represents a safe and reliable strategy in DFSP, without increasing the risk of recurrence. The outcomes of our study have confirmed the data from the literature regarding oncological safety.
authors: Plastic and Reconstructive Surgery Department, Hôpital Saint Louis, Paris, France. barbara.hersant@gmail.com
authors: B
authors: B
authors: Hersant
authors: P
authors: P
authors: May
authors: M
authors: M
authors: Battistella
authors: C
authors: C
authors: Pagès
authors: C
authors: C
authors: Lebbe
authors: M
authors: M
authors: Revol
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D018223:Dermatofibrosarcoma / Q000473:pathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D019651:Plastic Surgery Procedures / Q000379:methods*; D012189:Retrospective Studies; D012878:Skin Neoplasms / Q000473:pathology / Q000601:surgery*; D013524:Surgical Flaps; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult