of 97 cases of undifferentiated carcinomas of nasopharyngeal type , 63 were composed of solid cords of epithelial cells ( regaud type ) , 22 showed isolated cells in a lymphoid stroma ( schmincke type ) , and in 12 the neoplastic cells were aligned with a fibrosarcoma-like aspect ( spindle-cell type ) .
C0334254
undifferentiated carcinomas
C0014597
epithelial cells