See the original post:
http://antioxidant-scleroderma.blogspot.com/2010/02/many-faces-of-scleroderma-sine.html
Scleroderma sine scleroderma (ssSSc) is an occult form of systemic sclerosis that may cause diagnostic difficulties due to the absence of skin involvement. Delays in the diagnosis of ssSSc means lost opportunites to address and treat the often lethal involvement of internal organs such as the lungs and heart.