ALK and T-cell non-Hodgkin lymphoma: The genotypes of the T-cell lymphomas isolated from 10–18 week old mice were JunB wildtype (NPM-ALK/JunB+/+), JunB hemizygous (NPM-ALK/JunB+/Δ) and lacked JunB completely (NPM-ALK/JunBΔ/Δ).