abnormal collagen fibrils , described by others as amianthoid fibers , composite collagen , collagen flowers and intrafibrillar collagen dysplasia , have been found only rarely in human tumors but commonly in certain connective tissue diseases such as pseudoxanthoma elasticum , ehlers-danlos syndromes , marfan 's syndrome , osteoarthritic cartilage , and emphysematous lung among others .
C0009782
connective tissue diseases
C0033847
pseudoxanthoma elasticum