What are peripheral T cell and NK cell neoplasms?

• Adult T-cell leukemia/lymphoma- CD4+cells, HTLV-1 (cloverleaf, flower cells) • Mycosis fungoides/Sezary Syndrome CD4+helper Tell tumor, homes to the skin, Sezary syndrome • Extranodal NK/Tcell Lymphoma _ Destructive nasopharyngeal mass, surrounds and invades blood vessels leading to ischemic necrosis, associated with EBV