colloidal (redirected from colloidal goiter)

colloidal [kŏ-loi´d'l]

of the nature of a gel or gluelike substance in which particles are held in suspension.

colloidal gold test a test of cerebrospinal fluid based on alterations in the albumin-globulin ratios that occur in certain disorders of the central nervous system. Normal spinal fluid, when diluted and added to a colloidal gold suspension, will not precipitate the colloidal gold. The extent of precipitation is indicative of various diseases such as multiple sclerosis, poliomyelitis, and encephalitis. A positive reaction also occurs in the presence of neurosyphilis. The sample of spinal fluid must not contain blood because this will cause a false-positive reaction.

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colloidal

of the nature of a colloid.

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colloidal bath

a bath containing gelatin, bran, starch or similar substances, to relieve skin irritation and pruritus.

colloidal body

a homogeneous, eosinophilic structure found in the lower epidermis and dermis in systemic or discoid lupus erythematosus and any other skin disease in which there is damage to the basal cells. They are formed from degenerated epidermal basal cells and contain immunoglobulin, complement, fibrin and glycoprotein. Called also Civatte body, hyaline body.

colloidal degeneration

the assumption by the tissues of a gumlike or gelatinous character.

colloidal goiter

see goiter.

colloidal osmotic pressure

largely the osmotic pressure exerted by plasma proteins; see also oncotic pressure.

colloidal solution

used in the management of shock to increase osmotic pressure and volume of plasma. Dextrans and plasma are examples.