Concomitant Extramedullary Plasmacytoma in the Oropharynx and Hypopharyngeal Squamous Cell Carcinoma

Figure 4

Histopathological findings for transorally resected nasopharyngeal tumor. HE staining: low magnification (a) and high magnification (b). Proliferation of plasma cells and unevenly distributed nuclei are observed. Immunostaining shows negative results for κ (c) and positive results for λ (d).

(a)

(b)

(c)

(d)