Figure-1.
B-cell centroblastic/centrocytic lymphoma of a 3-year-old mongrel female dog. Fine-needle aspiration biopsies of enlarged pre-scapular lymph node. (a) A population of medium-to-large lymphoid cells admixed with very few mature lymphocytes Hemacolor, ×400; (b) PAX5 immunostain (×200); (c) CD3 immunostain (×200); (d) Ki67 immunostain - moderate index: 40% (×200).