Fig. 4
From: Presence of a mouse mammary tumour virus-like in feline lymphomas: a preliminary study
Cat MMTVels-positive lymphoma and immuno-histochemical expression of p14. A Gastrointestinal T-cell lymphoma, ID#92134. Infiltration of CD3-positive lymphocytes and lymphoblasts in the lamina propria of the intestine epithelium (IHC, Ob. 20×). Insert: CD3+  cells show epitheliotropism. B Scattered cytoplasmic expression of p14 in neoplastic lymphoblasts (IHC, Ob. 40×, ID#92134). Insert: Tumoral cells show marked anisokaryiosis and anisocytosis, indented nuclei with marginated chromatin, and prominent nucleoli (IHC). C Nasal B-cell lymphoma, ID #90722. Severe infiltration of CD79a-positive lymphoblasts in the submucosal layer of nasal cavities (IHC, Ob. 20×). D Diffuse cytoplasmic expression of p14 in tumoral lymphoblasts. Neoplastic cells show severe anisokaryosis, anisocytosis, and reticulate chromatin (IHC Ob. 40×)