Biomaterial Database

[Pigmentation and venous stasis]. 1983

J F Merlen, and J Coget, and A M Sarteel

Local pigmentations can occur in the course of venous diseases and are said to be secondary to venous stasis and due to blood pigment. Most often, the pigment is haemosiderin and more rarely melenin pigments. Haemosiderin is a result of dermal biligenesis of extravasated red blood cells, the erythrodiapedesis being due to alterations in the vessel wall. Melanin pigments remain a mystery. Meaanoid may stimulate dermal melanocytes more than the true melanocytes of neural origin which have migrated to the epidermis. Above all, the problem is dominated by stasis and its microvascular and tissue consequences. The pigmentation is part of the "microangiopathy of stasis", as are the pigmentations occurring after therapeutic sclerosis.

UI	MeSH Term	Description	Entries
D007866	Leg	The inferior part of the lower extremity between the KNEE and the ANKLE.	Legs
D010859	Pigmentation Disorders	Diseases affecting PIGMENTATION, including SKIN PIGMENTATION.	Incontinentia Pigmenti Achromians,Ito Syndrome,Schamberg's Disease,Schamberg Disease,Disease, Schamberg,Disease, Schamberg's,Disorder, Pigmentation,Disorders, Pigmentation,Pigmentation Disorder,Schambergs Disease,Syndrome, Ito
D002196	Capillaries	The minute vessels that connect arterioles and venules.	Capillary Beds,Sinusoidal Beds,Sinusoids,Bed, Sinusoidal,Beds, Sinusoidal,Capillary,Capillary Bed,Sinusoid,Sinusoidal Bed
D002465	Cell Movement	The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell.	Cell Migration,Locomotion, Cell,Migration, Cell,Motility, Cell,Movement, Cell,Cell Locomotion,Cell Motility,Cell Movements,Movements, Cell
D004912	Erythrocytes	Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN.	Blood Cells, Red,Blood Corpuscles, Red,Red Blood Cells,Red Blood Corpuscles,Blood Cell, Red,Blood Corpuscle, Red,Erythrocyte,Red Blood Cell,Red Blood Corpuscle
D006485	Hemosiderin
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012880	Skin Pigmentation	Coloration of the skin.	Skin Color,Skin Tone,Color, Skin,Colors, Skin,Pigmentation, Skin,Pigmentations, Skin,Skin Colors,Skin Pigmentations,Skin Tones,Tone, Skin,Tones, Skin
D014652	Vascular Diseases	Pathological processes involving any of the BLOOD VESSELS in the cardiac or peripheral circulation. They include diseases of ARTERIES; VEINS; and rest of the vasculature system in the body.	Disease, Vascular,Diseases, Vascular,Vascular Disease
D014680	Veins	The vessels carrying blood away from the CAPILLARY BEDS.	Vein