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Year : 2019  |  Volume : 68  |  Issue : 1  |  Page : 23-26

Computed tomography measurements of normal adrenal glands in Indian population

Department of Radiodiagnosis, IGMC, Shimla, Himachal Pradesh, India

Correspondence Address:
Dr. Rohit Bhoil
Department of Radiodiagnosis, IGMC, Shimla, Himachal Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JASI.JASI_29_19

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Introduction: Evaluating the adrenal glands for size is fundamental in their imaging and to ascertain its normality or abnormality. Awareness of the range of normal size and shape is useful for adequate interpretation of computed tomography (CT) scans in patients with suspected adrenal pathology. Material and Methods: CT body scans of 1250 patients without evidence of adrenal disease were reviewed to determine the shape and size of normal adrenal glands. Patients with conditions that are known to affect the adrenal glands or any known malignancy were excluded from the study. Furthermore, patients with any evidence of focal adrenal enlargement or malignancy on imaging were not included in the study. All measurements were made on 64-slice contrast-enhanced CT axial sections and only those images were selected in which the adrenals were adequately visualized. Three measurements were made: maximum width of the body of the gland and maximum width of both the limbs (medial and lateral); all measurements were taken perpendicular to the long axis of the body/limb. Results: Based on our study, we came to the conclusion that the average width of the body of the right and left adrenal glands is 6.9 ± 0.31 mm and 5.4 ± 0.24 mm, respectively (though maximum width of the body may reach up to 11 mm) and that normal adrenal limbs should not measure >5 mm. Discussion and Conclusion: The most common shape of the adrenal glands was found to be Y shape, followed by the V and triangular shapes. The values provided in the present study may be used as a reference standard for the CT evaluation of the adrenal glands in the Indian population in particular.

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