The reasoning: the label is the map
Hodgkin lymphoma diagnosis requires characteristic cells in the correct tissue background; staging, bulk and risk define therapy intensity. T-cell neoplasms are heterogeneous: nodal, cutaneous, leukaemic, extranodal and virus-associated entities behave differently. Adult T-cell leukaemia/lymphoma should prompt HTLV-1 evaluation in the right epidemiologic setting.