Morphological variation in structurespassing from jugular foramen in human skulls of West India

Abstract

Introduction:
The knowledge of Jugular foramen is important to neurosurgeons while performing surgeries related to Jugular foramen because, in case of tumor invasion, all structures are not clearly seen and hence correct knowledge is required when approachingsuch tumors or other related diseases. The diameters of Jugular foramen are different in different sex, races, and age.
Objective:
This osteological study was to provide complete knowledge of Jugular foramen in Indian population with some other characteristics like dome and separation in Jugular foramen.
Material and Methods:
68 skulls were obtained from anatomy department, NHLMMC and BJMC. Anteroposterior and transverse diameter of jugular foramen was measured using vernier calipers. The presence of dome shaped bony roof and septa was observed using magnifying glass.We did not include bones with broken or damaged Jugular foramen.
Results:
We found dome in 4 skulls on right side and in 1 skull on left side. Separation was found complete in 11 skulls, partial in 81 skulls and absent in 44 skulls. In 55.8%, size of the foramen was greater on right side than left. Average anteroposterior diameter was0.82cm and average transverse diameter was 1.10 cm.