International Journal of Anatomy and Research

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Type of Article : Case Report

Year: 2015 | Volume 3 | Issue 2 | Page No. 1039-1042

Date of Publication: 31-05-2015



Kavitha Kamath.B * 1, Vinayak Kamath 2.

*1 Assistant Professor, Dept of Anatomy, Shimoga Institute of Medical Sciences, Shimoga, Karnataka, India.
2 Lecturer, Dept of Public health dentistry, A.B Shetty Institute of Dental Sciences, Derlakatte, Mangalore, Karnataka, India.

Address: Dr. Kavitha Kamath.B, Assistant Professor, Department of Anatomy, Shimoga Institute of Medical Sciences, Sagar Road, Shimoga, Karnataka. 577201, India. E-Mail:


Ossification of various ligaments in the body may result in clinical symptoms due to compression of neighbouring structures and complications in regional surgeries. This case reports of a dry skull that presented with two rare bony anomalies - caroticoclinoid and petrosphenoid bridges. Simultaneous occurrence of both these anomalies is a unique morphological event with neurovascular implications. Considering the fact that majority of textbooks in anatomy do not provide a detailed description of these entities, the present report is very much relevant for neurosurgeons and radiologists in day to day practice.
KEY WORDS: Caroticoclinoid ligament, petrosphenoidal ligament, clinoid processes, abducent nerve, internal carotid artery.


  1. Icke C, Ozer E, Arda N. Microanatomical characteristics of the petrosphenoidal ligament of Gruber. Turkish Neurosugery 2010;20:323-27.
  2. Ozdogmus O, Saka E, Tulay C, Gurdal E, Uzun I, Cavdar S. Ossification of interclinoid ligament and its clinical significance. Neuroanatomy 2003;2:25-27.
  3. Peker T, Anil A, Gulekon N, Turgut B, Pelin C, Karakose M. The incidence and types of sella and sphenopetrous bridges. Neurosurg Rev 2006;29:219-23.
  4. Freire AR, Rossi AC, Prado FB, Groppo FC, Caria PHF, Botacin PR. Caroticoclinoid Foramen in Human Skulls: Incidence, Morphometry and its Clinical Implications. Int  J Morphol 2011;29:427-31.
  5. Ozdogmus O, Saka E, Tulay C, Gurdal E, Uzun I, Cavdar S. The anatomy of the carotico-clinoid foramen and its relation with the internal carotid artery. Surg Radiol Anat 2003;25:241-46.
  6. Tubbs RS, Sharma A, Loukas M, Cohen-Gadol AA. Ossification of the petrosphenoidal ligament: unusual variation with the potential for abducens nerve entrapment in Dorello’s canal at the skull base. Surg Radiol Anat 2014;36:303-5.
  7. Umansky F, Elidan J, Valarezo A. Dorello’s canal: A microanatomical study. J Neurosurg 1991;75:294-98.
  8. Azeredo RA, Liberti EA, Watanabe IS. Anatomical variations of the clinoid process of the human sphenoid bone. Arq Cent Estud Curso Odontol 1988;25-26:9-11.
  9. Aggarwal B, Gupta M, Kumar H. Ossified ligaments of the skull. J Anat Soc India 2012;61:37-40.
  10. Erturk M, Kayalioglu G, Govsa F. Anatomy of the clinoidal region with special emphasis on the caroticoclinoid foramen and interclinoid osseous bridge in a recent Turkish population. Neurosurg Rev 2004;27:22-26.
  11. Hasan T. Bilateral caroticoclinoid and absent mental foramen: rare variations of cranial base and lower jaw. Italian Journal of Anatomy and Embryology 2013;118:288-97.
  12. Lee Hy, Chung IH, Choi BY, Lee KS. Anterior clinoid process and optic strut in Koreans. Yonsei Medical Journal 1997;38:151-54.
  13. Keyers JEL. Observations on four thousand optic foramina in human skulls of known origin. Arch Opthalmol 1935;13:538-68.
  14. Osgur A, Esen K. Ossification of the petrosphenoidal ligament: multidetector computed tomography findings of an unusual variation with a potential role in abducens nerve palsy. Jpn J Radiol [Internet] 2015 Mar: about 5p. doi:10.1007/s11604-015-0410-9. (accessed on 22 March 2015)
  15. Cederberg RA, Bensen BW, Nunn M, English JD. Calcification of the interclinoid and petroclinoid ligaments of sells turcica: a radiographic study of the prevalence. Orthod Craniofacial Res 2003;6:227-32.
  16. Hochstetter F. Uber die Taenia interclinoidea, die Commisura alicochlearis und die Cartilago supracochlearis des menschlichen Primordialkraniums. Gegenbaurs Morph Jahrb 1940;84:220-243.
  17. Kier EL.Embryology of the normal optic canal and its anomlies. An anatomic and roentgenographic study. Invest Radiol 1966;1:346-62.
  18. Lang J. Structure and postnatal organization of heretofore uninvestigated and infrequent ossifications of the sella turcica region. Acta Anat 1977;99:121-39.
  19. Marom A. A new look at the old canal. Skull base 2011;21:53-57.


Kavitha Kamath.B, Vinayak Kamath. OSSIFICATION OF CAROTICOCLINOID AND PETROSPHENOIDAL LIGAMENTS OF SKULL: A CASE REPORT. Int J Anat Res 2015;3(2):1039-1042. DOI: 10.16965/ijar.2015.152




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