title: Rare complication after VAC therapy in the treatment of tissue defect due to surgical excision of pilonidal sinus.
abstract: BACKGROUND
  Pilonidal sinus is frequently managed with surgical incision. If the wound is left open to heal by secondary intention, negative pressure wound therapy (NPWT) is often used to promote healing.
  
  
  METHODS
  We describe the case of a 60-year-old patient referred after excision of a pilonidal sinus, which was managed postoperatively with NPWT. Unfortunately, the patient developed squamous cell carcinoma, which was undetected postoperatively, as the dressing was left in place for 5 days.
  
  
  CONCLUSIONS
  Guidelines for the use of NPWT should be followed, with dressing intervals at 2 to 3 days. Wounds managed by NPWT should be monitored carefully for malignancy at the time of dressing changes.
authors.affiliation: Saime Irkoren, MD, Assistant Professor, Department of Plastic and Reconstructive Surgery, Adnan Menderes University Faculty of Medicine, Aydin, Turkey. Nazan Sivrioglu, MD, Assistant Professor, Department of Plastic and Reconstructive Surgery, Adnan Menderes University Faculty of Medicine, Aydin, Turkey. Hüray Karaca, MD, Assistant, Department of Plastic and Reconstructive Surgery, Adnan Menderes University Faculty of Medicine, Aydin, Turkey.
authors.forename: Saime
authors.initials: S
authors.lastname: Irkoren
authors.forename: Nazan
authors.initials: N
authors.lastname: Sivrioglu
authors.forename: Hüray
authors.initials: H
authors.lastname: Karaca
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D054843:Negative-Pressure Wound Therapy / Q000009:adverse effects*; D010864:Pilonidal Sinus / Q000601:surgery*; D011183:Postoperative Complications; D012445:Sacrococcygeal Region; D012983:Soft Tissue Neoplasms / Q000209:etiology*