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- W4385804527 abstract "Thymus is a T-cell-producing lymphoid organ that appears prominent in the paediatric population and involutes in size with ageing. The gland shows a wide variety of appearances across different age groups. The purpose of the study is to evaluate the computed tomography (CT) appearance of thymus gland in the normal population with a focus on size, CT attenuation and fatty infiltration in different age groups.This is a retrospective study done after taking approval from the Institutional Ethics Committee. Patients undergone CT scans of the thorax were identified from our database. All evaluations were done in non-contrast CT scans. Patients having underlying diseases that may have associated thymic abnormality were excluded. The appearance of thymus and the presence of fatty replacement were assessed. The size of thymus (length and thickness of right limb and left limb) and non-contrast CT Hounsfield unit (HU) value of thymic tissue were measured and compared in various age groups.Four hundred and fifty patients were included, 262 (58.2%) were male. Mean age was 33.6 ± 17.1 years, range (3 months-80 years). The size of thymus was observed to decrease with increasing age. The mean age of complete fatty replacement in our study was 45 years. Complete fatty replacement was noted in all cases with an age of more than 60 years. The most common shape was arrowhead, and the most common location was pre-aortic and para-aortic location. Non-contrast CT HU value was maximum in infants and gradually decreased with advancing age.Even normal thymus can show varied appearance on CT which changes with the age of the patient being imaged. A comparison with normative data could help differentiate normal from abnormal glands to avoid unnecessary intervention." @default.
- W4385804527 created "2023-08-15" @default.
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- W4385804527 date "2023-07-05" @default.
- W4385804527 modified "2023-09-27" @default.
- W4385804527 title "Multidetector computed tomography evaluation of normal thymus and variations with age" @default.
- W4385804527 doi "https://doi.org/10.4103/jmas.jmas_25_23" @default.
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- W4385804527 hasPublicationYear "2023" @default.
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