Figure 2.

Morphological characteristics and mutational data of the case (case A) with intratumoral heterogeneity between areas of the primary tumor. (A and B) Elongated villous papillary morphology of 2 distinct primary regions with the c.35G>A KRAS mutation, contrasting the tubular morphology (C) of the primary tumor region with the c.35G>T KRAS mutation. Lymph node (D) and liver (E) harbor the c.35G>T mutation and have a similar tubular morphology as the primary tumor region with the same mutation type.