Immunological aspects of immunodeficiency diseases part 47

The absence of tonsils or other lymphatic tissue may be evident and radiographic studies may reveal thymic-hypoplasia. Lymphopenia (absolute lymphocyte count <3x10(9)/L in the first year of life) is characteristic feature seen in  over 80% of patients with SCID. (Therefore, SCID needs to be excluded in any infant with unexplained Lymphopenia)