Raynaud's phenomenon

A condition resulting in discoloration of fingers and/or toes when a person is exposed to changes in temperature (cold or hot) or emotional events. The skin discoloration occurs because an abnormal spasm of the blood vessels causes a diminished blood supply. Initially, the digits involved turn white because of diminished blood supply, then turn blue because of prolonged lack of oxygen and finally, the blood vessels reopen, causing a local "flushing" phenomenon, which turns the digits red. This three-phase color sequence (white to blue to red), most often upon exposure to cold temperature, is characteristic of Raynaud's phenomenon. Raynaud's phenomenon occurs with a number of conditions including rheumatic diseases (scleroderma, rheumatoid arthritis, {{}}systemic lupus erythematosus), hormone imbalance (hypothyroidism and carcinoid), trauma (frostbite, vibrating tools), medications (propranolol/INDERAL, estrogens, nicotine, bleomycin) and, uncommonly, cancer. The phenomenon is named for the French physician Maurice Raynaud (1834-1881).

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Raynaud's phenomenon n the symptoms associated with Raynaud's disease called also Raynaud's syndrome

Medical dictionary. 2011.

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  • Raynaud's phenomenon — [rā nōz′] n. 〚after M. Raynaud (1834 81), Fr physician〛 a secondary circulatory disorder, often associated with a primary vascular disease, characterized by changes of blood flow resulting in white, bluish, or red hands and feet: as a primary… …   Universalium

  • Raynaud's phenomenon — [rā nōz′] n. [after M. Raynaud (1834 81), Fr physician] a secondary circulatory disorder, often associated with a primary vascular disease, characterized by changes of blood flow resulting in white, bluish, or red hands and feet: as a primary… …   English World dictionary

  • Raynaud's phenomenon — Infobox Disease Name = Raynauds phenomenon Caption = Hands with Raynaud s phenomenon DiseasesDB = 25933 ICD10 = ICD10|I|73|0|i|70 ICD9 = ICD9|443.0 ICDO = OMIM = MedlinePlus = eMedicineSubj = med eMedicineTopic = 1993 MeshID = D011928 Raynaud s… …   Wikipedia

  • raynaud's phenomenon — (ˈ)rā¦nōz noun also raynaud s syndrome Usage: usually capitalized R Etymology: after Maurice Raynaud died 1881 French physician : the symptoms associated with Raynaud s disease * * * Raynaud s phenomenon, a condition in which the hand or fingers… …   Useful english dictionary

  • Raynaud's phenomenon — noun A condition of the hands and feet becoming discoloured, typically white, red, and blue, caused by an altered blood flow brought about by cold, or stress …   Wiktionary

  • Raynaud’s phenomenon — white finger disease brought on by long term use of vibrating hand tools …   Eponyms, nicknames, and geographical games

  • Raynaud's — may be:* Raynaud s phenomenon, pattern of reducing blood flow to extremities in response to cold, vibration, and/or emotional stress ** Raynaud s disease, aka primary Reynaud s, Raynaud s phenomenon independent of diseases with other symptoms See …   Wikipedia

  • Raynaud — may refer to:Medicine* Raynaud s disease * Raynaud s phenomenonPeople* Dr. Alain Raynaud, Bordeaux winemaker of Château Quinault * Michel Raynaud, (1938 ndash;) mathematician working in algebraic geometry …   Wikipedia

  • Raynaud's disease — Infobox Disease Name = Raynaud s disease ICD10 = ICD10|I|73|0|i|70 ICD9 = ICD9|443.0 DiseasesDB = 11186 OMIM = 179600 eMedicineSubj = med eMedicineTopic = 1993 MedlinePlus = 000412 MeshName = Raynaud MeshNumber = C14.907.744 Raynaud s disease… …   Wikipedia

  • Phenomenon, Raynaud's — A condition resulting in discoloration of fingers and/or toes when a person is exposed to changes in temperature (cold or hot) or emotional events. The skin discoloration occurs because an abnormal spasm of the blood vessels causes a diminished… …   Medical dictionary

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