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Pathology

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Immunopathology

Question
6 out of 9
 

Developmental failure of pharyngeal pouches 3 and 4 is (LQ)



A DiGeorges syndrome

B agammaglobulinemia of Bruton,

C adenosine deaminase (ADA)

D combined immunodeficiency disease (SCID),

Ans. A DiGeorges syndrome

A defect in the enzyme adenosine deaminase (ADA) is seen in the autosomal recessive form of severe combined immunodeficiency disease (SCID), while a defect in the IL-2 receptor is seen in the X-linked recessive form of SCID. A developmental defect at the pre-B stage is seen in X-linked agammaglobulinemia of Bruton, while developmental failure of pharyngeal pouches 3 and 4 is characteristic of DiGeorges syndrome.

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