In doubtful cases, molecular studies of clonal TCR-γ-chain gene rearrangement in the skin and lymph nodes are helpful.[2, 3] Although its pathogenesis is not clear, AITL is a peripheral T-cell lymphoma of mature T-cells secreting several cytokines, which may help in predicting the biological behaviour of such an aggressive disease.[4]. This evidence concerns the gene TRGC1 and peripheral T-cell lymphoma, not otherwise specified.