| pigment induration of the lung | A condition characterised by firmness of the lungs, and a brown colour associated with haemosiderin-pigmented macrophages in alveoli, consequent upon long-continued congestion due to heart disease. Synonym: pigment induration of the lung. (05 Mar 2000) |
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| brown induration of the lung | A condition characterised by firmness of the lungs, and a brown colour associated with haemosiderin-pigmented macrophages in alveoli, consequent upon long-continued congestion due to heart disease. Synonym: pigment induration of the lung. (05 Mar 2000) |
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| red induration | A condition observed in lungs in which there is an advanced degree of acute passive congestion, or acute pneumonitis (sometimes termed interstitial pneumonia), or a similar pathologic process. (05 Mar 2000) |
| penile induration | A disease of unknown aetiology in which there are plaques or strands of dense fibrous tissue causing induration of the corpora cavernosa of the penis. The condition produces a painful deformity and is sometimes seen in cases of dupuytren's contracture. (12 Dec 1998) |
| gray induration | A condition occurring in lungs during and after pneumonic processes in which there is failure of resolution; there is a conspicuous increase in fibrous connective tissue in the walls of the alveoli, and also within the alveoli (e.g., fibrous organization of exudate); in contrast to brown induration, there is usually not a prominent degree of pigmentation, unless chronic passive congestion is also present. (05 Mar 2000) |
| plastic induration | Sclerosis of corpus cavernosum of penis. (05 Mar 2000) |
| cyanotic induration | Induration related to persistent, chronic venous congestion in an organ or tissue, frequently resulting in fibrous thickening of the walls of the veins and eventual fibrosis of adjacent tissue; the affected tissue becomes firmer than normal, and tends to have an unusual, red-blue colour. (05 Mar 2000) |
| induration | 1. The quality of being hard, the process of hardening. 2. <dermatology> An abnormally hard spot or place, particularly of the skin. Origin: L. Induratio (18 Nov 1997) |
| Froriep's induration | Induration of a muscle through an interstitial growth of fibrous tissue. Synonym: Froriep's induration, interstitial myositis, myofascitis. (05 Mar 2000) |
| accessory pigment | <biochemistry> Light-absorbing pigments such as carotenoids and phycobilins that serve as complements to photosynthesis. (06 May 1997) |
| bile pigment haemoglobin | <protein> A protein which is formed from the breakdown of haemoglobin (a protein that carries oxygen in the blood) and is a precursor to the bile pigment biliverdin. (09 Oct 1997) |
| malarial pigment | A dark brown, granular pigment which rotates the plane of polarised light and has other properties similar to formalin pigment; occurs in parasites, such as Plasmodium malariae, around brain capillaries, and in fixed macrophages of spleen, liver, bone marrow, and lymph nodes. See: malarial pigment stain. (05 Mar 2000) |
| malarial pigment stain | <technique> A stain using phloxine-toluidine blue O sequence; malarial pigment and nuclei are bluish, erythrocytes and cytoplasm are red to orange; found in phagocytic cells of the reticuloendothelial system. (05 Mar 2000) |
| melanotic pigment | <protein> Pigments largely of animal origin. High molecular weight polymers of indole quinone. Colours include black/brown, yellow, red and violet. Found in feathers, cuttle ink, human skin, hair and eyes and in cellular immune responses and wound healing in arthropods. (18 Nov 1997) |
| chymotropic pigment | A pigment dissolved in the vacuole of a plant cell. Origin: G. Chymos, juice, + trope, turning, inclination, + -ic (05 Mar 2000) |
| pigment | 1. Any material from which a dye, a paint, or the like, may be prepared; particularly, the refined and purified colouring matter ready for mixing with an appropriate vehicle. 2. <physiology> Any one of the coloured substances found in animal and vegetable tissues and fluids, as bilirubin, urobilin, chlorophyll, etc. 3. Wine flavored with species and honey. <physiology> Pigment cell, a small cell containing colouring matter, as the pigmented epithelial cells of the choroid and iris, or the pigmented connective tissue cells in the skin of fishes, reptiles, etc. Origin: L. Pigmentum, fr. The root of pingere to paint: cf. F. Pigment. See Paint, and cf. Pimento, Orpiment. Source: Websters Dictionary (01 Mar 1998) |