A patient's abnormal lymphocytes are positive for CD2 antigen and lack C3 receptors. What can this be classified as?

The classification of the abnormal lymphocytes as a disorder of T cells is accurate due to the presence of the CD2 antigen. CD2 is a surface marker typically expressed on T lymphocytes and is involved in T-cell activation and interaction.

In this scenario, the lack of C3 receptors also helps substantiate this conclusion. C3 receptors are primarily associated with B cells and macrophages, which play key roles in the immune response but are not characteristic of T cells.

The specific positivity for the CD2 antigen suggests that these abnormal lymphocytes are indeed part of the T-cell lineage, as this is a defining marker of that cell type. Therefore, the complete identification of these cells as T cells reinforces the conclusion that this condition is a disorder of T cells.