TRGC1 and T-cell non-Hodgkin lymphoma: However, the recognition of CTCLs with an γ/δ+ phenotype has increased with the availability of TCRγ/δ immunohistochemical analyses in paraffin sections, leading to a prognostically more heterogeneous group of primary cutaneous γ/δ T-cell lymphomas (PCGDTLs), including γ/δ+ MF [4,5,6,7].