title: [Lymphatic and vascular invasion in laryngeal and pyriform sinus carcinomas].
abstract: BACKGROUND
  To investigate prognostic significance of the lymphatic and vascular invasion in patients with squamous cell carcinoma of the larynx and pyriform sinus.
  
  
  METHODS
  Patients with squamous cell carcinoma of the larynx and pyriform sinus who underwent laryngectomies between 2002 and 2006 in the ENT Clinic of Cluj-Napoca were investigated for lymphatic and vascular invasion and their effect on disease-free survival and recurrence rates.
  
  
  RESULTS
  The present study included 396 patients. The mean disease-free survival of patients with or without lymphatic invasion was statistically significant (p=0.000000). The mean disease-free survival of patients with or without vascular invasion was statistically significant (p=0.000021). In multivariant analysis, the lymphatic invasion was significantly correlated only with surgical resection borders (p=0.0004), while vascular invasion was significantly correlated with surgical resection borders (p=0.0000), nodes diameter (p=0.0075) and postoperative radiotherapy and/or chemotherapy (p=0.0002).
  
  
  CONCLUSIONS
  Lymphatic and vascular invasion have a significant prognostic value and influence the disease-free survival, regional and distant metastasis rates significantly.
authors: UMF Iuliu Hatieganu, ENT, Cluj-Napoca, Romania. chirila_magda@yahoo.com
authors: M
authors: M
authors: Chirila
authors: S D
authors: SD
authors: Bolboaca
authors: M
authors: M
authors: Muresan
authors: E
authors: E
authors: Tomescu
authors: M
authors: M
authors: Cosgarea