Effect of Formalin Fixation on Surgical Margins in Patients With Oral Squamous Cell Carcinoma
| Autor: | Tejashree B. Pangare, Pushkar Waknis, Shilpa S. Bawane, Padmasree B. Patowary, Mayank N. Patil, Shaliki Wadhera |
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| Rok vydání: | 2017 |
| Předmět: |
Male
Surgical margin medicine.medical_specialty Oral Surgical Procedures Specimen Handling Fixatives 03 medical and health sciences 0302 clinical medicine Formaldehyde Carcinoma medicine Humans Basal cell In patient Aged Neoplasm Staging Shrinkage Fixation (histology) business.industry Margins of Excision 030206 dentistry Middle Aged Sulcus medicine.disease Surgery Cross-Sectional Studies medicine.anatomical_structure Otorhinolaryngology 030220 oncology & carcinogenesis Carcinoma Squamous Cell Female Mouth Neoplasms Oral Surgery business |
| Zdroj: | Journal of Oral and Maxillofacial Surgery. 75:1293-1298 |
| ISSN: | 0278-2391 |
| DOI: | 10.1016/j.joms.2016.11.024 |
| Popis: | Purpose Formalin fixation causes shrinkage of surgical margins, which can result in the underestimation of tumor-free margins. The purpose of this study was to show the effect of formalin fixation on surgical margins. Another aim of this study was to evaluate surgical margin shrinkage after fixation of oral squamous cell carcinoma (OSCC) specimens of the gingivobuccal sulcus (GBS). Materials and Methods This was a cross-sectional study. The study sample consisted of OSCC specimens of the GBS after composite resection. The primary predictor variable was the length of the linear margin at various locations (anterior, posterior, medial, and lateral). The primary outcome variable was the percentage of change in each respective margin (anterior, posterior, medial, and lateral) after fixation in 10% formalin for 24 hours. Other variables were age, gender, use of smokeless tobacco, smoking status, and tumor staging. The difference between pre-fixation and post-fixation data was calculated using paired t test. Results The sample consisted of 15 patients (7 men and 8 women; age range, 55 to 65 yr) diagnosed with OSCC of the GBS. Shrinkage of surgical margins (decrease) occurred after fixation compared with margins before fixation. The average surgical margin shrinkages were 18.7% anteriorly, 14.9% posteriorly, 23.6% medially, and 23.9% laterally. This shrinkage was statistically significant ( P Conclusion Formalin fixation causes considerable shrinkage of surgical margins. This phenomenon should be considered by the pathologist before providing the final histopathology report. |
| Databáze: | OpenAIRE |
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