Does anyone have info on pseudoxanthoma elasticum?

Sure... What would you like to know? It's a fairly rare inherited disorder that usually affects the skin first, often in childhood but sometimes later. It is characterized by small, yellowish papules and loose skin, mainly affecting the neck, armpits, groin, and the inside parts of the elbows and knees. Many individuals have "oblique mental creases" (diagonal grooves) in the chin. No specific treatment.