| neuritis, experimental allergic | An autoimmune demyelinating disorder of peripheral nerves produced by injection of peripheral nerve tissue protein. (12 Dec 1998) |
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| dermatitis, allergic contact | A contact dermatitis due to allergic sensitization to various substances. These substances subsequently produce inflammatory reactions in the skin of those who have acquired hypersensitivity to them as a result of prior exposure. (12 Dec 1998) |
| encephalomyelitis, allergic | An experimental demyelinating disease produced in animals by injections of myelin fractions in order to study the relationship between hypersensitivity and the demyelinating diseases. (12 Dec 1998) |
| experimental allergic encephalitis | <pathology> An autoimmune disease that can be induced in various experimental animals by the injection of homogenised brain or spinal cord in Freund's adjuvant. The antigen appears to be a basic protein present in myelin and the response is characterised by focal areas of lymphocyte and macrophage infiltration into the brain, associated with demyelination and destruction of the blood-brain barrier. Sometimes used as a model for demyelinating diseases, although whether this is entirely justifiable is not clear. (18 Nov 1997) |
| experimental allergic encephalomyelitis | <pathology> An autoimmune disease that can be induced in various experimental animals by the injection of homogenised brain or spinal cord in Freund's adjuvant. The antigen appears to be a basic protein present in myelin and the response is characterised by focal areas of lymphocyte and macrophage infiltration into the brain, associated with demyelination and destruction of the blood-brain barrier. Sometimes used as a model for demyelinating diseases, although whether this is entirely justifiable is not clear. (18 Nov 1997) |
| extrinsic allergic alveolitis | <radiology> Exposure to organic dust less than 5u in size, recurrent episodes of fever, chills, dry cough, dyspnea following exposure after 6 hr interval (10-40% assymptomatic), spontaneous resolution in 1-2 days, farmer's lung, Pandora's pneumonitis, bird-fancier's lung, mushroom worker's lung, bagassosis, malt worker's lung, maple bark disease, suberosis, sequoiosis see: acute extrinsic allergic alveolitis, hypersensitivity pneumonitis (12 Dec 1998) |
| acanthamoeba keratitis | Infection of the cornea by an ameboid protozoan which may cause corneal ulceration leading to blindness. (12 Dec 1998) |
| actinic keratitis | A reaction of the cornea to ultraviolet light. (05 Mar 2000) |
| vascular keratitis | Superficial cellular infiltration of the cornea and neovascularization between Bowman's membrane and the epithelium. (05 Mar 2000) |
| marginal keratitis | A corneal inflammation at the limbus. (05 Mar 2000) |
| geographic keratitis | Keratitis with coalescence of superficial lesions in herpes keratitis. (05 Mar 2000) |
| vesicular keratitis | Keratitis with coalescence of areas of epithelial corneal oedema. (05 Mar 2000) |
| metaherpetic keratitis | A postinfectious corneal inflammation in herpetic keratitis leading to epithelial erosion; not due to virus replication. (05 Mar 2000) |
| phlyctenular keratitis | An inflammation of the corneal conjunctiva with the formation of small red nodules of lymphoid tissue (phlyctenulae) near the corneoscleral limbus. Synonym: scrofulous keratitis. (05 Mar 2000) |
| pneumococcal/suppurative keratitis | A severe, creeping, central, suppurative ulcer often due to pneumococci. Synonym: pneumococcal/suppurative keratitis, serpent ulcer of cornea. (05 Mar 2000) |