What's the difference between erythema and rash?

Erythema


Definition:

  • (n.) A disease of the skin, in which a diffused inflammation forms rose-colored patches of variable size.

Example Sentences:

  • (1) Skin affected by a burn cancer is scarred, ulcerated, and often appears as erythema ab igne clinically in adjacent skin.
  • (2) Photoprotection by constitutive and facultative pigmentation is reviewed with minimum erythema dose (MED) as the end point.
  • (3) The medical records and histopathologic slides of 13 patients with erythema elevatum diutinum were studied.
  • (4) The 5 ug application sites were biopsied at 24 h. Both enantiomers caused dose related erythema and increased blood flow at 6 and 24 h, which were not significantly different at either of the time points tested.
  • (5) Usually, there is leucoplakia with an erythema and an irregular keratosis or a punctuated one.
  • (6) When they occurred, these changes were usually accompanied by facial erythema lasting 2-5 min and were correlated with increases in plasma histamine level (P less than 0.001).
  • (7) Erythema gyratum repens is a cutaneous eruption with a unique morphology resembling a wood grain pattern.
  • (8) Three infants presented with acute scrotal swelling, erythema, and a tender irreducible firm mass within the scrotum.
  • (9) Ten children had 18 episodes of erysipelas-like erythema which proved to be specific for the disease.
  • (10) Only UV-induced erythema of the skin, adjuvant induced arthritis and the measurement of vascular permeability proved suitable for differentiation of the potency of the four topical agents.
  • (11) Painful palmar and plantar erythema is an uncommon systemic complication of chemotherapy and has been reported in association with methotrexate, cystosine arabinoside, doxorubicin, and 5-fluorouracil.
  • (12) These exanthemas must be separated from the postherpetic erythema exsudativum multiforme because of the identified virus.
  • (13) Escin was tested in the stasis edema, cotton-pellet-granuloma, and UV-erythema, i.e., in test models which seem specially suited to characterize the properties of this substance.
  • (14) The mast cell count in patients with erythema multiforme was numerically higher than in healthy controls, but the differences were not statistically significant.
  • (15) There was marked individual variation in subsequent erythema, but the patients with atopic dermatitis had less erythema at 15 min and 24 h than normal or psoriatic individuals.
  • (16) The wheal and erythema reaction caused by intracutaneous application of 5 mug histamine can be inhibited by applying fenoterol in doses from 100--400 mug in form of a metered aerosol on the skin 5 min before the injection of histamine.
  • (17) A patient of lepromatous leprosy with recurrent erythema nodosum leprosum developing acute renal failure proving fatal within 8 weeks is reported.
  • (18) In addition, intensity of macrophage-infiltration shared a similar time course change with those of erythema and edema.
  • (19) Itching appeared before erythema in 83% of subjects and within 5-8 min after instillation of the allergen.
  • (20) We report a case of refractory erythema multiforme associated with atypical epidermal autoantibodies.

Rash


Definition:

  • (v. t.) To pull off or pluck violently.
  • (v. t.) To slash; to hack; to cut; to slice.
  • (n.) A fine eruption or efflorescence on the body, with little or no elevation.
  • (n.) An inferior kind of silk, or mixture of silk and worsted.
  • (superl.) Sudden in action; quick; hasty.
  • (superl.) Requiring sudden action; pressing; urgent.
  • (superl.) Esp., overhasty in counsel or action; precipitate; resolving or entering on a project or measure without due deliberation and caution; opposed to prudent; said of persons; as, a rash statesman or commander.
  • (superl.) Uttered or undertaken with too much haste or too little reflection; as, rash words; rash measures.
  • (superl.) So dry as to fall out of the ear with handling, as corn.
  • (v. t.) To prepare with haste.

Example Sentences:

  • (1) The rash presented either as a pityriasis rosea-like picture which appeared about three to six months after the onset of treatment in patients taking low doses, or alternatively, as lichenoid plaques which appeared three to six months after commencement of medication in patients taking high doses.
  • (2) Two young patients presented with generalised lymphadenopathy, otorrhoea, otitis, and rash.
  • (3) --The frequency of common clinical manifestations (eg, headache, fever, and rash) and laboratory findings (eg, leukocyte and platelet counts and serum chemistry abnormalities) of patients with infectious diseases was tabulated.
  • (4) The cause of death was thought to be postoperative Graft Versus Host Disease with skin rash and pancytopenia.
  • (5) Adverse reactions associated with ticlopidine included neutropenia (severe in one patient) with no clinical complications, diarrhea, or rash.
  • (6) The presence of an erythematous skin rash and hemorrhagic complications in acute graft-versus-host disease (GVHD) suggest that the vasculature may be involved in the immunopathologic process.
  • (7) Hypersensitivity reactions, most commonly skin rashes or pruritus, affect about 1% of patients.
  • (8) The adverse effects were negligible--one patient had light urticarial rash and pruritus.
  • (9) In vitro invasion and in vivo metastasis assays were performed with a panel of MCF-7 cells transfected with isogenic constructs of mutated rasH genes.
  • (10) We describe a man who presented with Reiter's syndrome and a new prominent malar rash.
  • (11) A 71-year-old female showed a rash over the S2-4 dermatomes on the right side.
  • (12) Somebody rashly asked if he listened to the recently reprieved 6 Music – no – or even Radio 1, which he only caught, he said, when turning the dial between Radios 3 and 4.
  • (13) These indicators included temperature elevation, inability to be consoled, level of alertness, nuchal rigidity, bulging fontanel, decreased appetite, rash, referral, and febrile seizures.
  • (14) Extracardiac adverse effects of quinidine include potentially intolerable gastrointestinal effects and hypersensitivity reactions such as fever, rash, blood dyscrasias and hepatitis.
  • (15) The protective effects of FK565 against systemic infections with herpes simplex virus (HSV) and murine cytomegalovirus (MCMV), respiratory tract infection with influenza virus and zosteriform rash with HSV investigated in mice.
  • (16) These included petechial rash, hypertrichosis, acute renal failure, fluid retention and cardiac failure.
  • (17) These results suggest a frequent infection with HHV-6 only a few weeks after BMT and a close association between the infection with the virus and the development of skin rashes.
  • (18) Of these five, one came from a 'normal' control who had a positive anti-nuclear antibody (ANA), facial rash and diabetes, two were from patients with systemic lupus erythematosus (SLE) and two were from patients with mixed connective tissue disease (MCTD).
  • (19) The drug was withdrawn in 6 patients--lack of response in one, thrombocytopenia in one, urticaria in one, rash in one, and granulocytopenia in 2.
  • (20) Supplementation with zinc sulfate 220 mg per day via nasogastric tube resulted in disappearance of the rash with return of serum zinc to normal levels.