ABSTRACT
Objective:To study the clinical pathologic,immunophenotypic and clinical and molecular biological characteristics of subcutaneous panniculitic T-cell lymphoma.Methods:The clinical and pathologic features were studied by clinical observation,laboratory test and clinical pathology.Immunophenotypic features were measured by paraffinnimmunoperoxidase with the antibodies of LCA?CD3?UCHL?L26,by freeze section immunoperoxidase with the antibodies of ??TCR???TCR and analysis of the subtype with the antibodies of V 1 ??V 2 ?.T cell receptor-? gene rearrangements were studied by polymerase chain reaction(PCR).Results:Cutaneous node,high fever,loss of body weight appeared in seven patients and hemophagocytic syndrome in five patients.Imbalance of dielectric,acid and basic,abnormality of the enzyme involvement of the subcutaneous fat in a lacelike pattern with neoplastic cells were seen in all patients.The expression of LCA?CD 3?UCHL occurred in all patients,but no L26.The expression of ??TCR was found in three patients whose ??TCR was V 2+ ? and the expression of ??TCR was found in one of four patients.T cell receptor-? gene rearrangements were seen in three patients.Conclusion:SPTCL is a critical disease.The tumor cells origin from V 2+ ? of T-lymphocyte relating to cutaneous lymphotissue.T cell receptor-? gene rearrangements may happened in SPTCL patient.