squamous

And squamous cell carcinoma also develops under our fingernails.

Caihua Liang, et al. “A Population-Based Case-Control Study of Marijuana Use and Head and Neck Squamous Cell Carcinoma.”

Rather striking is the tendency of old squamous cells to retain the red stain, and fragments of such cells may mislead the unwary.

How are you to distinguish the papulo-squamous syphiloderm from psoriasis?

A mesothelial cell is very flattened, thus resembling a squamous epithelial cell.

In what respects does the papulo-squamous syphiloderm differ from psoriasis?

Chiefly with squamous eczema and the papulo-squamous syphiloderm; and on the scalp, also with seborrhœa.