An atypical position of the foramen ovale

• Autorzy: Skrzat J , Walocha J. , Srodek R. , Nizankowska A.
• Języki publikacji: EN

Abstrakty

EN

Visual inspection of a dry adult human skull revealed absence of a typical foramen ovale on the left side of the cranial base. The region of the foramen ovale was covered by an osseous lamina, which was continuous with the lateral pterygoid plate and thus formed a wall of an apparent canal, which opened on the lateral side of the pterygoid process. This canal is referred to as an oval canal (canalis ovalis), instead of the foramen ovale. It runs superiorly, medially from the infratemporal fossa, and opens into the middle cranial fossa. The altered osseous morphology of this basicranial region may affect the course of the neurovascular structures which pass through the foramen ovale. As a consequence, clinical symptoms could occur, including paresthesiae of the inner aspect of the cheek and compression and neuralgia of the mandibular nerve or its branches.

Słowa kluczowe

EN

atypical position; foramen ovale; oval canal; sphenoid bone

• Wydawca: -
• Czasopismo: Folia Morphologica
• Rocznik: 2006
• Tom: 65
• Numer: 4
• Opis fizyczny: p.396-399,fig.,ref.

Twórcy

autor

Skrzat J

• Jagiellonian University, Kopernika 12, 31-034 Krakow, Poland

autor

Walocha J.

autor

Srodek R.

autor

Nizankowska A.

Bibliografia

• 1. Bergman RA, Afifi AK, Miyauchi R (2004) Illustrated encyclopedia of human anatomic variation. In: Skeletal system: Cranium: Sphenoid bone (http://www.vh.org/adult/provider/anatomy/AnatomicVariants/AnatomyHP.html).
• 2. Błaszczyk B, Kaszuba A, Kochanowski J (1980) Atypical foramina of the base of the skull. Folia Morphol, 93: 201–209.
• 3. Ginsberg LE, Pruett SW, Chen MY, Elster AD (1994) Skull-base foramina of the middle cranial fossa: reassessment of normal variation with high-resolution CT. Am J Neuroradiol, 15: 283–291.
• 4. James TM, Presley R, Steel FL (1980) The foramen ovale and sphenoidal angle in man. Anat Embryol (Berl), 160: 93–104.
• 5. Kapur E, Dilberovic F, Redzepagic S, Berhamovic E (2000) Variation in the lateral plate of the pterygoid process and the lateral subzygomatic approach to the mandibular nerve. Med Arh, 54: 133–137.
• 6. Kim SY, Hu KS, Chung IH, Lee EW, Kim HJ (2003) Topographic anatomy of the lingual nerve and variations in communication pattern of the mandibular nerve branches. Surg Radiol Anat, 26:128–135.
• 7. Krmpotić-Nemanić J, Vinter J, Hat J, Jalšovec (1999) Mandibular neuralgia due to anatomical variation. Eur Arch Otorhinolaryngol, 256: 205–208.
• 8. Krmpotić-Nemanić J, Vinter I, Jalsovec D (2001) Accessory oval foramen. Ann Anat, 183: 293–295.
• 9. Kuta AJ, Laine FJ (1993) Imaging the sphenoid bone and basiocciput: anatomic considerations. Semin Ultrasound CT MR, 14: 146–159.
• 10. Long J (1995) Skull base and related structures. Atlas of clinical anatomy. Shattauer, Stutgart, New York.
• 11. Peker T, Karakose M, Anil A, Turgut HB, Gulekon N (2002) The incidence of basal sphenoid bony bridges in dried crania and cadavers: their anthropological and clinical relevance. Eur J Morphol, 40: 171–180.
• 12. Skrzat J, Walocha J, Środek R (2005) An anatomical study of the pterygoalar bar and the pterygoalar foramen. Folia Morphol, 64: 92–96.
• 13. Williams PL, Bannister LH, Berry MM, Collin P, Dyson M, Dussek JE, Ferguson MWJ. Gray’s anatomy. 38th ed. Churchill Livingstone, New York 2000.