Palisading Necrosis
Definition of Palisading Necrosis:
A morphologic appearance consisting of small, irregular regions of necrosis surrounded by dense accumulations of tumor cells; the tumor cells are more densely packed at the edge of the necrosis than in other regions of the tumor and thus appear to "palisade" around the necrotic zone.
Palisading Necrosis is part of the Necrotic Change group