They appear as dense, blue-purple granules within the red blood cell and there are usually only one or two, located in the cell periphery.

It may involve the alpha granules or the dense granules.

Electron dense secretory granules are seen in tumors of neuroectodermal origin.

The heterogeneous nature of the dense granules within the Clara cell's cytoplasm suggests that they may not all have a secretory function.

The other type of granules within platelets are called dense granules.

Platelets store mepacrine in dense granules.

Platelets contain alpha and dense granules.

A further group of spherical organelles are distributed throughout the cell rather than being localized at the apical complex and are known as the dense granules.

The expressed protein was concentrated in clusters of dense granules of fairly uniform diameter (80-150 nm) with no evidence of a surrounding membrane (Fig.

The granules of platelets are classified as dense granules and alpha granules.