In contrast to ALK+ ALCL, neither IL-17A nor IL-17F was detected in 48 h cell cultures of established BIA-ALCL lines nor in any of the eight malignant effusions (seromas) around breast implants, although one malignant effusion contained the Th17/Th22 cytokine IL-22 [71]. The gene discussed is IL22; the disease is anaplastic large cell lymphoma.