Phagosome
A phagosome is a vesicle formed once phagocytosis has taken place. The relative size of a phagosome is of a large nature due to it containing ingested extracellular material.[1].
The size of a phagosome is dependant on the injested particle, which can almost be as large as the actual phagosome itself. The phagosome's then fuse with a lysosome which allow degradation of the injested material to take place [2].