(A) Flow-cytometry data summarized on a radar chart. The specimens from the parotid gland, the brain, and the cervical lymph node each demonstrated proliferation of the T-cell lineage. (B) Large atypical cells are distributed sparsely against a background of lymph proliferation. (Cervical lymph node, hematoxylin-eosin stain, x 40). (C) magnetic resonance imaging after chemotherapy showed remarkable regression of the lesions.