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sequestrum
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sequestrum
‖ sequestrum Path. (sɪˈkwɛstrəm) Pl. sequestra. [mod.L. use of L. sequestrum something separated, neut. of sequester adj.: see sequester n.] A detached piece of bone lying within a cavity formed by necrosis. Also applied to a portion of skin separated by disease from the surrounding parts. Cf. seque...
Oxford English Dictionary
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Sequestrum
A sequestrum (plural: sequestra) is a piece of dead bone that has become separated during the process of necrosis from normal or sound bone. Openings in this involucrum allow debris and exudates (including pus) to pass from the sequestrum via sinus tracts to the skin.
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sequestrectomy
sequestrectomy Surg. (sɪkwɛˈstrɛktəmɪ) [f. sequestrum + -ectomy.] The surgical excision of a sequestrum or sequestra; = sequestrotomy.1940 in Chambers's Techn. Dict. 759/1. 1954 E. L. Farquharson Textbk. Operative Surg. v. 136 Sequestrectomy.—Small loose sequestra may be discovered only during an op...
Oxford English Dictionary
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Feline corneal sequestrum
The area surrounding the sequestrum may have superficial ulceration. A sequestrum in the cornea usually develops following long term (chronic) ulceration of the cornea.
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sequestral
▪ I. seˈquestral, a.1 nonce-wd. [f. L. sequestr-, sequester adj. (see sequester) + -al1.] (See quot.)1853 Whewell Grotius III. 365 Virgil calls a truce a sequestral peace [Grotius quanquam Virgilius pacem sequestram dixit (æn. xi. 133)], which Servius, on the passage, explains as a temporary peace.▪...
Oxford English Dictionary
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sequestrotomy
sequestrotomy Surg. (siːkwɛˈstrəʊtəmɪ) [f. sequestr-um + Gr. -τοµία a cutting.] The operation for the removal of a sequestrum.1876 Dunglison Med. Lex., Sequestrotomy, a hybrid term for the operation for necrosis. 1898 Syd. Soc. Lex.
Oxford English Dictionary
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Phossy jaw
Further progression led to the formation of sequestrum (dead bone that has separated from living bone) after three months and necrosis of the jaw within The distinguishing feature of this disease was the eventual separation of the sequestrum which was described as porous and light in weight.
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sequester
▪ I. † seˈquester, n.1 Obs. Also 4 suquestre. [a. L. sequester; prob. f. *seques-, *sequos a position apart (whence secus adv., otherwise); the etymological sense of the word (which is primarily an adj.) would thus be ‘standing apart’.] In Civil Law, a person with whom the parties in a suit deposit ...
Oxford English Dictionary
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SAPHO syndrome
It looks like chronic osteomyelitis but will not have a sequestrum or abscess.
Flat bones (10% of patients): mandible and ilium.
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sequestration
sequestration (siːkwɛˈstreɪʃən) Forms: 4–5 sequestracoun, 5 sequestracyo(u)n, 5–6 sequestracion, 6 sequestratioun, 6– sequestration. [ad. late L. sequestrātiōn-em, f. L. sequestrāre: see sequester v. Cf. OF. sequestration, Sp. secuestracion, Pg. sequestra{cced}ão, It. sequestrazione.] 1. a. An act o...
Oxford English Dictionary
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Synovial osteochondromatosis
with detached spur
Synovial proliferation:
Pigmented villonodular synovitis
Neoplastic:
Synovial chondrosarcoma
Other:
Osteochondritis dissecans
Sequestrum
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sinogram
sinogram Med. (ˈsaɪnəʊgræm) [f. sino-2 + -gram.] An X-ray photograph of a sinus into which a contrast medium has been introduced.1961 Lancet 5 Aug. 296/1 A sinogram showed narrowing of the sagittal sinus anterior to the fontanelle. 1974 J. D. Maynard in R. M. Kirk et al. Surgery x. 220/1 Such sinogr...
Oxford English Dictionary
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Dental emergency
A radiograph is useful to see if there is a retained root or bony sequestrum, which could be the cause of the infection.
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trepan
▪ I. trepan, n.1 (trɪˈpæn) Forms: 5–7 trepane, 5–6 trapane, 6 trappan(e, 7–8 trapan, 6– trepan. [a. F. trépan (also † trapan) a borer, surgical crown-saw (14th c.), ad. med.L. trepanum (Du Cange) a crown-saw, ad. Gr. τρύπανον a borer.] 1. A surgical instrument in the form of a crown-saw, for cutting...
Oxford English Dictionary
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