Figure 1: Histology: Indeterminate cell images of Papillary ca. a: Discriminant analysis: Papillary ca Spherical nuclei with densely distributed fine chromatin fine particles (powder). b: Discriminant analysis: A. nodule flat nuclei with weak staining, indistinguishable from Papillary ca. c: Discriminant analysis: Papillary ca intranuclear inclusion diagnosed as Papillary ca by nuclear parameter analysis.