| PEDF | pigment epithelium-derived factor |
|---|---|
| PG | paregoric; parotid gland; pentagastrin; pepsinogen; peptidoglycan; Pharmacopoeia Germanica; phosphat... |
| pigm | pigment, pigmented |
| RPE | rate of perceived exertion; recurrent pulmonary embolism; retinal pigment epithelium; ribulose 5-pho... |
| DILD | diffuse infiltrative lung disease; diffuse interstitial lung disease |
| pigment cell | Cells that contain pigment: See: melanocytes, chromatophores. (18 Nov 1997) |
|---|---|
| pigment cell of skin | Special cells in the skin and the eye that synthesise melanin pigments. Clusters of melanocytes often appear on the skin as moles. In fish and reptiles, the pigments are stored in melanosomes (chromatophores) that can be redistributed in the cytoplasm to change pigment patterns. Synonym: melanodendrocyte. Origin: melano-+ G. + kytos, a hollow (cell) (29 Sep 1997) |
| pigment cells of iris | Cell's of the stromal layer of the iris; in dark eyes (but not in blue) they contain granules of pigment. (05 Mar 2000) |
| pigment cells of retina | Cell's in the outermost layer of the retina that contain pigment granules. (05 Mar 2000) |
| pigment cirrhosis | Cirrhosis of the liver associated with dark brown discoloration seen in haemochromatosis. (05 Mar 2000) |
| pigment epitheliopathy | An acute disease manifested by rapid loss of vision, and multifocal, cream-coloured placoid lesions of the retinal pigment epithelium; resolves with restoration of vision. (05 Mar 2000) |
| pigment epithelium | Epithelium composed of cells containing granules of pigment or melanin, as in the retinal or iris pigment layer. (05 Mar 2000) |
| pigment epithelium of eye | Epithelium in the retina, ciliary body, and iris containing pigment granules. (12 Dec 1998) |
| pigment epithelium of optic retina | pigmented part of retina |
| wear-and-tear pigment | Lipofuscin that accumulates in aging or atrophic cells as a residue of lysosomal digestion. (05 Mar 2000) |
| haematogenous pigment | A pigment derived from the haemoglobin of the red blood cells. (05 Mar 2000) |
| hepatogenous pigment | Bile pigment derived from the destruction of haemoglobin in the liver. (05 Mar 2000) |
| natural pigment | A naturally occurring coloured compound; absorbs light in the visible range of the electromagnetic spectrum. Compare: structural colour. Synonym: biochrome. (05 Mar 2000) |
| incontinence of pigment | Loss of melanin from the epidermis, and accumulation in melanophages in the upper dermis; seen in several inflammatory diseases of the skin and in incontinentia pigmenti. (05 Mar 2000) |
| formalin pigment | <chemistry> A pigment formed when acid aqueous solutions of formaldehyde act on blood-rich tissues; characterised by rotation of the plane of polarised light, withstanding extraction in aqueous and lipid solvents, being bleached in acids and hydrogen peroxide; not formed when tissue is fixed with formaldehyde buffered to pH levels above 6. (05 Mar 2000) |