Will also search, Hanneke.  Here is my first attempt:

http://en.wikipedia.org/wiki/Ehlers-Danlos_Syndrome

Symptoms can include easy bruising, velvety-smooth skin, mildly hyperextensible 
skin, and loose, unstable joints. Joint dislocations and subluxations are 
common. Degenerative joint disease can occur; the pain associated with this 
condition is a serious complication. Unfortunately, pain medications are 
frequently underprescribed.

In addition to the joint and cardiac effects noted above for hypermobility, 
this variant is characterized by soft, highly elastic, velvety skin which may 
tear, bruise, or scar easily and/or be slow to heal, and which has a tendency 
to develop benign fatty growths as well as benign fibrous growths on pressure 
areas. Pregnancy can be life-threatening in this variant. It affects type-V 
collagen, as well as type I.

Hypermobility is usually limited to the fingers or toes, but the delicate skin 
noted above is joined by fragile blood vessel walls and organ membranes, with a 
tendency to rupture or develop aneurysms. Thin, translucent skin (veins can 
usually be seen on chest)

Yikes!  benign fatty growths?

Rowena

I have a question about  slippery soft skin inside hands and 
fingertips.