<unk>  is a disorder of connective tissue, the tissue that strengthens the body's structures. Disorders of connective tissue affect the skeletal system, cardiovascular system, eyes, and skin.
Marfan's syndrome
Fabry's disease
Bartter syndrome
Lown-Ganong-Levine syndrome
Townes-Brocks syndrome
Singh-Williams-McAlister syndrome
Baraitser-Reardon syndrome
McLeod syndrome