nosologically , in ulcerative-mutilating acropathies ( u.m.a . ) , it is customary to differentiate the usual forms of the disease ( thevenard 's disease ) which develop primarily and the secondary forms ( u.m.a . or , better , pseudo-u.m.a . ) , in which the syndrome is secondary to a known pathologic process and which represent a symptom and not a disease .
C0041582
ulcerative
C0030660
pathologic process