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CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2010; 20(04): 261-265
DOI: 10.4103/0971-3026.73537
Head and Neck

Evaluation of the styloid process on digital panoramic radiographs

Chandramani B More
Department of Oral Medicine and Radiology, K. M. Shah Dental College and Hospital, Sumandeep Vidyapeeth University, Piparia, Vadodara, Gujarat, India
,
Mukesh K Asrani
Department of Oral Medicine and Radiology, K. M. Shah Dental College and Hospital, Sumandeep Vidyapeeth University, Piparia, Vadodara, Gujarat, India
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Abstract

Background: The styloid process is an anatomical structure, whose clinical importance is not well understood. Proper clinical and radiographic evaluation can detect an elongated styloid process and calcification of the stylohyoid ligament. It has been reported that 2 - 28% of the general population show radiographic evidence of mineralization of a portion of the stylohyoid chain. The elongated styloid process may be symptomatic in many cases. Panoramic radiography is the best imaging modality to view the styloid process bilaterally. Aim: To assess the styloid process on digital panoramic radiographs. Materials and Methods: The study was conducted on 500 digital panoramic radiographs available in the archives of our department as soft copies. These radiographs were taken using a digital panoramic system. The radiographic length of the styloid process was measured on both sides using the measurement toolbars on the accompanying analysis software. For statistical analysis we used the unpaired t test, Chi-square test, and one-way ANOVA test, as necessary. Results: The average length of the left styloid was 25.41 ± 6.32 mm and that of the right styloid was 25.53 ± 6.62 mm. The length of both styloids increased with age and males had longer styloids than females. Elongated styloids were present in 19.4% of the panoramic radiographs. Langlais type I elongated styloids and a partial calcification pattern were more common than others. Conclusion: Panoramic radiography is useful for detection of an elongated styloid process and / or ossification of the stylohyoid ligament in patients with or without symptoms, and helps avoid a misdiagnosis of tonsillar pain or pain of dental, pharyngeal, or muscular origin.

Keywords

Eagle syndrome - panoramic radiography - stylohyoid ligament - styloid process


Publication History

Article published online:
02 August 2021

© 2010. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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  • References

  • 1 Chaurasia BD. Styloid apparatus: Deep structures in the neck. Human Anatomy, Regional and applied Dissection and Clinical. Head, neck and brain. 4 th ed. Vol. 3. New Delhi: CBS Publisher; 2004. p. 200.
  • 2 Worth HM. Principles and practice of oral radiologic interpretation. Chigaco: Year Book Medical Publishers; 1963. p. 327.
  • 3 Eagle WW. Elongated styloid processes: Report of two cases. Arch Otolaryngol 1937;25:584-7.
  • 4 Bozkir MG, Boga H, Dere F. The evaluation of styloid process in panoramic radiographs in edentulous patients. Tr J Med Sci 1999;29:481-5.
  • 5 Kaufman SM, Elzay RP, Irish EF. Styloid process variation. Radiologic and clinical study. Arch Otolaryngol 1970;91:460-3.
  • 6 Jaju PP, Suvarna P, Parikh N. Eagles syndrome. An enigma to dentists. J Indian Acad Oral Med Radiol 2007;19:424-9.
  • 7 Steinman EP. Styloid syndrome in absence of an elongated process. Acta Otolaryngol 1968;66:347-56.
  • 8 Camarda AJ, Deschamps C, Forest D. I. Stylohyoid chain ossification: A discussion of etiology. Oral Surg Oral Med Oral Pathol 1989;67:508-14.
  • 9 Langlais RP, Miles DA, Van Dis ML. Elongated and mineralized stylohyoid ligament complex: A proposed classification and report of a case of Eagle′s Syndrome. Oral Surg Oral Med Oral Pathol 1986;61:527-32.
  • 10 Savranlar A, Uzun L, Uπur MB, Ozer T. Three-dimensional CT of Eagle′s syndrome. Diagn Interv Radiol 2005;11:206-9.
  • 11 Piagkou M, Anagnostopoulou S, Kouladouros K, Piagkos G. Eagle′s syndrome: A review of the literature. Clin Anat 2009;22:545-58.
  • 12 Eagle WW. Elongated styloid process; further observations and a new syndrome. Arch Otolaryngol 1948;47:630-40.
  • 13 Gossman JR Jr, Tarsitano JJ. The styloid-stylohyoid syndrome. J Oral Surg 1977;35:555-60.
  • 14 Correll RW, Jensen JL, Taylor JB, Rhyne RR. Mineralization of the Stylohyoid - Sylomandibular ligament complex. Oral Surg Oral Med Oral Pathol 1979;48:286-91.
  • 15 Ferrario VF, Sigurta D, Daddona A, Dalloca L, Miani A, Tafuro F, et al. Calcification of the stylohyoid ligament: Incidence and morphoquantative evaluation. Oral Surg Oral Med Oral Pathol 1990;69:524-9.