Pyoderma gangrenosum.
McDonagh
A J
AJ
Cork
M J
MJ
Harrington
C I
CI
D006801:Humans; D011711:Pyoderma / Q000150:complications*; D012536:Scalp Dermatoses / Q000209:etiology*; D012883:Skin Ulcer / Q000209:etiology*