Abstract
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.
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References
DelBalso AM, Ellis GE, Hartman KS et al (1990) Diagnostic imaging of the salivary glands and periglandular regions. WB Saunders, Philadelphia
Smith JRG, King WWK, Tang WYM et al (1987) Differentiating tumours of the deep and superficial lobes of the parotid gland by computed tomographic sialography. Clin Radiol 38:345–349
Stone DN, Mancuso AA, Rice D et al (1981) Parotid CT sialography. Radiology 138:393–397
Rice DH, Mancuso AA, Hanafee WN (1980) Computerized tomography with simultaneous sialography in evaluating parotid tumors. Arch Otolaryngol 106:472–473
Sone S, Higashihara T, Morimoto S et al (1982) CT of parotid tumors. Am J Neuroradiol 3:143–147
Bryan RN, Miller RH, Ferreyro RI et al (1982) Computed tomography of the major salivary glands. Am J Roentgenol 139:547–554
Eracleous E, Kallis S, Tziakouri C et al (1997) Sonography, CT, CT sialography, MRI and MRI sialography in investigation of the facial nerve and the differentiation between deep and superficial parotid lesions. Neuroradiology 39:506–511
Conn IG, Wiesenfeld D, Ferguson MM (1983) The anatomy of the facial nerve in relation to CT/sialography of the parotid gland. Br J Radiol 56:901–905
Ariyoshi Y, Shimahara M (1998) Determining whether a parotid tumor is in the superficial or deep lobe using magnetic resonance imaging. J Oral Maxillofac Surg 56:23–27
de Ru JA, van Benthem PP, Hordijk GJ (2002) The location of parotid gland tumors in relation to the facial nerve on magnetic resonance images and computed tomography scans. J Oral Maxillofac Surg 60:992–995
de Ru JA, Bleys RL, van Benthem PP et al (2001) Preoperative determination of the location of parotid gland tumors by analysis of the position of the facial nerve. J Oral Maxillofac Surg 59:525–530
Ragbir M, Dunaway DJ, Chippindale AJ et al (2002) Prediction of the position of the intraparotid portion of the facial nerve on MRI and CT. Br J Plast Surg 55:376–379
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Lim, C.Y., Chang, HS., Nam, KH. et al. Preoperative Prediction of the Location of Parotid Gland Tumors using Anatomical Landmarks. World J Surg 32, 2200–2203 (2008). https://doi.org/10.1007/s00268-008-9663-0
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DOI: https://doi.org/10.1007/s00268-008-9663-0