Ki-1 lymphoma

Ki-1 lymphoma(s)

A heterogeneous group of childhood lymphomas, the cells of which react against the monoclonal antibody Ki-1, which usually involves the skin, soft tissue, bone, GI tract, rarely CNS and pericardium DiffDx Metastatic undifferentiated CA, amelanotic melanoma, malignant sinus histiocytosis; despite its 'ugly' histology, KLs may respond to chemotherapy with prolonged remission or complete cure. See Lymphoma.