| PD | Doctor of Pharmacy; Dublin Pharmacopoeia; interpupillary distance; Paget disease; pancreatic duct; p... |
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| PD/AR | photosensitivity dermatitis and actinic reticuloid syndrome |
| PICD | primary irritant contact dermatitis |
| dermatitis, phototoxic | A nonimmunologic, chemically induced type of photosensitivity producing a sometimes vesiculating dermatitis. It results in hyperpigmentation and desquamation of the light-exposed areas of the skin. (12 Dec 1998) |
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| dermatitis repens | pustulosis palmaris et plantaris |
| dermatitis, seborrheic | A chronic inflammatory disease of the skin of unknown aetiology. It is characterised by moderate erythema, dry, moist, or greasy scaling, and yellow crusted patches on various areas, especially the scalp. On the scalp, it generally appears first as small patches of scales, progressing to involve the entire scalp with exfoliation of excessive amounts of dry scales (dandruff). (12 Dec 1998) |
| dermatitis simplex | Blushing or redness of the skin caused by a toxic reaction or a neurovascular phenomenon. Synonym: dermatitis simplex. (05 Mar 2000) |
| dermatitis, toxicodendron | An allergic contact dermatitis caused by exposure to plants of the genus toxicodendron (formerly rhus). These include poison ivy, poison oak, and poison sumac, all plants that contain the substance urushiol, a potent skin sensitizing agent. (12 Dec 1998) |
| dermatitis vegetans | A benign fungating granulomatous mass caused by chronic pyogenic infection. Synonym: pyoderma vegetans. (05 Mar 2000) |
| dermatitis venenata | An obsolete term for a cutaneous eruption due to contact with a sensitizing agent such as urushiol in poison ivy, resins, chemicals, cosmetics, etc.; the eruption is edematous, erythematous, and vesicular. (05 Mar 2000) |
| dermatitis verrucosa | An obsolete term for chromoblastomycosis. (05 Mar 2000) |
| dhobie mark dermatitis | An allergic contact dermatitis due to hypersensitivity to ingredients in laundry marking ink. Synonym: dhobie mark, washerman's mark. (05 Mar 2000) |
| diaper dermatitis | Colloquially referred to as diaper, ammonia, or napkin rash; dermatitis of thighs and buttocks resulting from exposure to urine and faeces in infants' diapers. Formerly attributed to ammonia formation; moisture, bacterial growth, and alkalinity may all induce lesions. Synonym: ammonia rash, diaper rash, Jacquet's erythema, napkin rash. (05 Mar 2000) |
| infectious eczematoid dermatitis | An inflammatory reaction of skin adjacent to the site of a pyogenic infection; e.g., purulent otitis, the area around a colostomy, or intranasal infection; thought to be due to a local sensitization to the resident organisms. (05 Mar 2000) |
| irritant contact dermatitis | Skin reactions ranging from erythema and scaling to necrotic burns resulting from nonimmunologic damage by chemicals in contact with the skin immediately or repeatedly. (05 Mar 2000) |
| trefoil dermatitis | A form of photosensitization that occurs in horses, cattle, sheep, and pigs from eating several types of clover and alfalfa. Synonym: clover disease, trefoil dermatitis. Origin: L. Trifolium, trefoil, clover (05 Mar 2000) |
| exfoliative dermatitis | Generalised exfoliation with scaling of the skin and usually with erythema (erythroderma); may be a drug reaction or associated with various benign dermatoses, lupus erythematosus, lymphomas, or of undetermined cause. Synonym: dermatitis exfoliativa, pityriasis rubra, Wilson's disease. (05 Mar 2000) |
| exudative discoid and lichenoid dermatitis | Disease resembling an exudative form of nummular eczema described in Jewish males with oval lesions on the penis, trunk, and face. Synonym: exudative discoid and lichenoid dermatitis, Sulzberger-Garbe syndrome. (05 Mar 2000) |