Amyloid P component in human thyroid
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The distribution of amyloid P component in the adult human thyroid was studied by direct immunofluorescence on frozen sections of surgically removed tissue. Amyloid P component shows a striking fibrillary and broken linear distribution in the interfollicular areas. This pattern corresponds to that of reticulin fibres. Amyloid P is also localised to the small amount of elastic tissue in blood vessels but is not demonstrable within cells or in acinar basement membranes.