Telangiectatic Photoaging (TP)

[Guide]

The NRS has funded a study that differentiates the difference between Subtype 1 (erythematotelangiectatic) rosacea and Telangiectatic Photoaging (TP), a rosacea mimic which is a condition with visible blood vessels from sun damage. The NRS report on this subject states, "mast cell tryptase, an enzyme released by mast cells that is associated with inflammation, was found to be four times higher in subtype 1 rosacea skin than in TP skin, and 25 times higher than in the control group. Rosacea skin also showed significantly more evidence of matrix remodeling, a skin damage process leading to greater vasodilation." [1]

It should be noted that the subtype classification of rosacea has been improved with the new phenotype classification so that Subtype 1 has been split into two distinct phenotypes, Phenotype 2 and Phenotype 3. 

End Notes 

[1] New Study Defines Rosacea and Damage From the Sun
Posted: 06/15/2015, NRS Weblog