Lymphoid thymic hyperplasia

Last revised by Yuranga Weerakkody on 22 Aug 2022

Lymphoid thymic hyperplasia, also referred to as lymphoid follicular thymic hyperplasia or autoimmune thymitis, is a form of thymic hyperplasia

This condition is most commonly associated with conditions, such as:

Unlike in true thymic hyperplasia, there is a presence of an increased number of lymphoid follicles.

Some publications (with small sample sizes) suggest that CT attenuation of lymphoid hyperplasia can be significantly higher than that of true hyperplasia, with the optimal threshold of around 40 HU useful for differentiating lymphoid hyperplasia from true thymic hyperplasia 3.

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