Kaposi's sarcoma: a light and electron microscopic study. 1990

H Kato, and T Hamada, and T Tsuji, and T Baba, and J Seki, and Y Kobayashi
Department of Dermatology, Osaka City University Medical School, Japan.

A patient with diabetes mellitus who developed the typical classic lesions of Kaposi's sarcoma is described. Our patient presented with a reddish-purple papulonodular lesion on the right foot of five months' duration. A skin biopsy specimen showed a proliferation of spindle cells forming numerous vascular slits and a diffuse extravasation of erythrocytes. The patient's sera was negative for human immunodeficiency virus (HIV) antibodies and cytomegalovirus (CMV) antibodies. Ultrastructural examination demonstrated fibroblast-like spindle cells phagocytosing and digesting red blood cells to form vascular spaces. The patient died, due to gastrointestinal hemorrhage, and the autopsy revealed an extensive visceral involvement of Kaposi's sarcoma.

UI MeSH Term Description Entries
D007564 Japan A country in eastern Asia, island chain between the North Pacific Ocean and the Sea of Japan, east of the Korean Peninsula. The capital is Tokyo. Bonin Islands
D008297 Male Males
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D003920 Diabetes Mellitus A heterogeneous group of disorders characterized by HYPERGLYCEMIA and GLUCOSE INTOLERANCE.
D005534 Foot Diseases Anatomical and functional disorders affecting the foot. Foot Disease
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D012514 Sarcoma, Kaposi A multicentric, malignant neoplastic vascular proliferation characterized by the development of bluish-red cutaneous nodules, usually on the lower extremities, most often on the toes or feet, and slowly increasing in size and number and spreading to more proximal areas. The tumors have endothelium-lined channels and vascular spaces admixed with variably sized aggregates of spindle-shaped cells, and often remain confined to the skin and subcutaneous tissue, but widespread visceral involvement may occur. Kaposi's sarcoma occurs spontaneously in Jewish and Italian males in Europe and the United States. An aggressive variant in young children is endemic in some areas of Africa. A third form occurs in about 0.04% of kidney transplant patients. There is also a high incidence in AIDS patients. (From Dorland, 27th ed & Holland et al., Cancer Medicine, 3d ed, pp2105-7) HHV-8 is the suspected cause. Kaposi Sarcoma,Kaposi's Sarcoma,Multiple Idiopathic Pigmented Hemangiosarcoma,Kaposis Sarcoma,Sarcoma, Kaposi's

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