Note that FLG2 labels are either diffusely dispersed in the cytoplasm (panel c) or grouped as keratohyalin granules (panel d).    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

The stratum lucidum appears in section as a homogeneous or dimly striated membrane, composed of closely packed cells in which traces of flattened nuclei may be found, and in which minute granules of a substance named keratohyalin are present.    From Wordnik.com.  [X. The Organs of the Senses and the Common Integument. 2. The Common Integument] Reference

FLG2 labels were dispersed diffusely throughout the cytoplasm in the SC, while in the SG, FLG2 was localized to irregularly-shaped keratohyalin granules of various sizes (.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference