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Year : 2011  |  Volume : 17  |  Issue : 1  |  Page : 14-16

Morphological variations of a jugular foramen in North Indian human adult skulls

Department of Anatomy, Santosh Medical College, Ghaziabad, NCR-Delhi, India

Correspondence Address:
Ruchira Sethi
J-41, Patel Nagar-I, Ghaziabad, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-7749.85786

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Aims: To assess the size and bridging patterns of jugular foramina of adult human skulls. Materials and Methods: The study was conducted on 56 adult North - Indian skulls procured from Department of Anatomy of Santosh Medical College, Ghaziabad. The jugular foramina were observed by naked eye and with magnifying lens to assess the variations in size and bridging patterns. Results: The jugular foramen was larger on the right side in 53.5% skulls and on the left side in 7.1% skulls. In the remaining skulls (39.4%) it was equal on both sides. Complete tripartite division was observed in 10.7% cases. Incomplete division was seen in 7.1% cases on right side and 3.5% cases on the left side. Incomplete division was never observed bilaterally. An additional accessory foramen was observed to be communicating with posterior condylar canal. Conclusion: The variations observed in present study are of immense value to ENT surgeons while performing middle ear surgeries for various jugular foramen tumors. Also, the bridging patterns cause compression to structures passing through this foramen hence accentuating the clinical presentations of Glomus jugulare.

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