CD30+ anaplastic large cell lymphomas.

Within the spectrum of CD30+ lymphoproliferative diseases of the skin primary cutaneous CD30+ large cell lymphomas are now recognized as a distinct clinicopathologic entity. Once terminologic confusions are clarified the pertinent clinical, histomorphological, and immunophenotypical features essential for the diagnosis can be delineated. Clinical studies indicate a better prognosis of primary cutaneous CD30+ large cell lymphomas as compared with their nodal counterparts and with other cutaneous large cell lymphomas. Therapeutic strategies should be planned accordingly.