The following marker is used to assess the monoclonality in T-cells -: (A) Kappa and Lambda chain, (B) TCR gene rearrangement, (C) CD, (D) CD34
Answer is B. Molecular analysis of the rearrangement in T cell population can distinguish polyclonal lymphocyte proliferations from monoclonal expansions. Reference :Robbins basic pathology 9th edition pg no 100: