Weird kind of question.

[PutraenusAlivius]

necrosis /ne·cro·sis/ (nĕ-kro´sis) pl. necro´ses [Gr.] the morphological changes indicative of cell death caused by progressive enzymatic degradation; it may affect groups of cells or part of a structure or an organ.

Although that when tissue literally dies on its own.

Not always. Necrosis can also happen by cell death by trauma.

EDIT:
By the way, don't google Necrosis pics.