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Year : 2020  |  Volume : 15  |  Issue : 2  |  Page : 322-327

Morphometric analysis of the corpus callosum using cadaveric brain: An anatomical study

1 Department of Anatomy, AIIMS, Bathinda, Punjab, India
2 Department of Anatomy, Government Medical College, Patiala, Punjab, India
3 Department of Anatomy; Department of SPM and Biostatistics, Government Medical College, Patiala, Punjab, India

Correspondence Address:
Dr. Priti Chaudhary
Department of Anatomy, AIIMS, Bathinda, Punjab
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajns.AJNS_328_19

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Purpose: The present study was conducted to measure the longitudinal and vertical lengths of the brain hemisphere, longitudinal length of the corpus callosum (CC), and distances of CC from the frontal and occipital poles, in order to define its topographic location within the brain hemispheres. Materials and Methods: Fifty formalin-fixed human brains were dissected in the midsagittal plane. The parameters measured were as follows: (i) straight distance between frontal and occipital pole (AB); (ii) vertical distance (height) between the upper and lower surface of the brain hemisphere (CD); (iii) frontal pole to anterior-most point of CC (EG); (iv) occipital pole to posterior-most point of CC (ZO); (v) anterior-most point to posterior-most point of CC (EZ); and (v) anterior edge of genu to the upper end of lamina terminalis (EF). Results: The mean value of AB, CD, EG, ZO, EZ, and EF was 15.47 ± 0.94 cm, 9.48 ± 0.83 cm, 3.31 ± 0.29 cm, 5.65 ± 0.54 cm, 6.96 ± 0.55 cm, and 2.1 ± 0.39 cm, respectively. AB had the strongest positive correlation with ZO (0.79), whereas CD (height) had it with EZ (0.59). Both AB and CD had a strong positive correlation with EZ. The ratios EZ/AB = 0.45 (P = 0.001) and EZ/CD = 0.73 (P = 0.003) illustrated a steady and significant proportions, present in all the brains studied. Although the mean values of all the parameters were greater in males than in females, only two parameters (ZO and EZ) showed statistically significant (P < 0.05) gender differences. Conclusion: The precise anatomical knowledge regarding the morphometry of CC will provide baseline data for the diagnosis and progression of disease affecting it.

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