The other forms of CTCL include CD30+ primary cutaneous lymphoproliferative diseases; subcutaneous T-cell lymphoma with panniculitis appearance; NK/T-cell extranodal lymphoma, nasal type (very rare in Western countries, but very common in Asia, as well as Central and South America); and primary cutaneous lymphoma with peripheral T-cells—unspecified type. This evidence concerns the gene TNFRSF8 and primary cutaneous T-cell non-Hodgkin lymphoma.