A member asked:

Can a baby be born without a thymus gland?

A doctor has provided 1 answer

YES: Several genetic defects that affect the development of t lymphocytes (immune system blood cells) results in absent or very small thymus. Also, deletion of chromosome 22q11 or digeorge syndrome, a relatively common genetic syndrome, causes poor devlopment of thymus, which is significant in 1% of babies with this chromosomal deletion.

Answered 3/28/2018

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