The abnormal union of two normally separate tissues. Adhesion may occur after inﬂammation or surgery; the result is often a ﬁbrous band between the adjacent tissues. Examples are adhesions between joint surfaces – which reduce mobility of a joint – or, after operation, between loops of intestine, where the ﬁbrous band may cause obstruction. Movement of the heart may be restricted by adhesions between the organ and its membranous cover, the pericardial sac.
Article Categories:Medical Dictionary