n. (in anatomy) a portion of a tissue or organ, usually distinguishable from other portions by lines of demarcation. For example, the uterus consists of upper and lower segments. The anterior segment of the eye is the front portion, including the cornea, anterior chamber, iris, and lens. See also somite.
(FSGS) a condition in which there is scarring in some (focal) glomeruli that affects only part (segmental) of the glomerular capillary tuft. Primary FSGS overlaps with *minimal change nephropathy and typically presents with the *nephrotic syndrome. Secondary FSGS has a wide range of causes, from viral infections, including HIV, to haemodynamic changes associated with reduced renal mass, hypertension, and obesity, and is usually associated with less severe proteinuria.... focal segmental glomerulosclerosis
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