Normal | Reduced | Number of patients | |
---|---|---|---|
*One patient had a normal IgA concentration and two had normal IgM values. The total number of cases of thymoma and antibody deficiency was 75. No patients with human immunodeficiency virus infection were included in this review. References for this table are available from the authors on request. | |||
PHA, phytohaemagglutinin. | |||
Serum IgG, IgA, and IgM* | 0 | 75 | 75 |
B cell number/% | 5 | 33 | 38 |
CD4 positivity T cell number/% | 11 | 9 | 20 |
CD4+:CD8+ T cell ratio | 8 | 22 | 30 |
Absent delayed hypersentivity | 2 | 12 | 14 |
PHA T cell stimulation | 12 | 8 | 20 |