Endothelin-secreting tumor.
Recently, we have reported two cases with endothelin (ET)-secreting tumor presenting with hypertension and elevated plasma endothelin-1 (ET-1) levels. The present study examines the histopathology of the ET-secreting tumor in one of these cases. The neoplasm was located in the skin and microscopically characterized as a malignant hemangioendothelioma by remarkable intravascular proliferations of atypical endothelium with the expression of Factor VIII-related antigen in the tumor cells. The tumor enlarged rapidly with rising ET-1 and blood pressure levels. The ET-1 content and its messenger RNA expression in the tumor extract were higher than those from normal parts of skin. ET-1 may play a pathophysiological role in patients with ET-secreting malignant hemangioendothelioma.
Yokokawa
K
K
First Department of Internal Medicine, Osaka City University Medical School, Japan.
Tahara
H
H
Kohno
M
M
Murakawa
K
K
Yasunari
K
K
Nakagawa
K
K
Hamada
T
T
Otani
S
S
Yanagisawa
M
M
Takeda
T
T
D000368:Aged; D000369:Aged, 80 and over; D001794:Blood Pressure / Q000502:physiology; D015152:Blotting, Northern; D016232:Endothelins / Q000378:metabolism*; D005260:Female; D006390:Hemangioendothelioma / Q000378:metabolism* / Q000473:pathology / Q000503:physiopathology; D006651:Histocytochemistry; D006801:Humans; D012333:RNA, Messenger / Q000378:metabolism; D011863:Radioimmunoassay; D012867:Skin / Q000378:metabolism; D012878:Skin Neoplasms / Q000378:metabolism* / Q000473:pathology / Q000503:physiopathology
D016232:Endothelins; D012333:RNA, Messenger