Pustular vasculitis with clinical feature of pustular psoriasis and sternoclavicular hyperostosis.
We report the case of a 51-year-old Japanese man with a unique pustulosis. He had multiple erythematous plaques and numerous pinpoint pustules on the trunk and extremities resembling pustular psoriasis. Histologic features revealed a fully developed intraepidermal abscess filled with neutrophils and disrupted epidermal keratinocytes. Mild leukocytosclastic vasculitis was seen in the underlying dermis. A direct immunofluorescence study revealed IgM, Clq, C3 and fibrinogen deposits in the dermal vessels. The patient had also sternoclavicular hyperostosis. We think that this represents a unique type of pustular vasculitis distinct from pustular psoriasis.
Demitsu
T
T
Department of Dermatology, Jichi Medical School, Tochigi, Japan.
Ishiharajima
S
S
Miyamoto
T
T
Kosuge
A
A
Usui
K
K
Kano
T
T
Suzuki
M
M
Kitajima
Y
Y
Yaoita
H
H
D003937:Diagnosis, Differential; D004912:Erythrocytes / Q000473:pathology; D006801:Humans; D015218:Hyperostosis, Sternocostoclavicular / Q000473:pathology*; D015603:Keratinocytes / Q000473:pathology; D008214:Lymphocytes / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009504:Neutrophils / Q000473:pathology; D011565:Psoriasis / Q000473:pathology*; D017445:Skin Diseases, Vascular / Q000473:pathology*; D014657:Vasculitis / Q000473:pathology*