Preoperative prediction of the location of parotid gland tumors using anatomical landmarks

Chi Young Lim, Hang Seok Chang, Kee Hyun Nam, Woong Youn Chung, Cheong Soo Park

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Background: The location of the parotid gland tumor can affect the duration and difficulty of operation. Therefore, accurate preoperative evaluation of tumor location can affect surgical outcomes. Methods: Results in 100 patients with parotid gland tumors who underwent parotidectomy between January 2000 and October 2005 were retrospectively reviewed. Tumor location was determined relative to four landmarks-facial nerve (FN) line, Utrecht (U) line, Conn's arc (CA), and retromandibular vein (RV)-on computerized tomography (CT) scans, and confirmed by intraoperative findings. The accuracy of each landmark was evaluated. Correlations between accuracy and tumor size were determined for tumors ≤2 cm and >2 cm in diameter. Results: Of the four landmarks, the U line was the most accurate (94%), sensitive (89.3%), and specific (97.7%) in predicting tumor location. However, for tumors ≤2 cm in diameter, FN line (p = 0.022) and RV (p = 0.028) were significantly more accurate than U line and CA. Conclusion: Although the U line was the most accurate in predicting the location of parotid gland tumors, landmarks predicting accurate tumor location should be selected according to tumor size.

Original languageEnglish
Pages (from-to)2200-2203
Number of pages4
JournalWorld Journal of Surgery
Issue number10
Publication statusPublished - 2008 Oct

All Science Journal Classification (ASJC) codes

  • Surgery


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