What does the word fistula mean?
A solution of continuity, of greater or less depth and sinuosity; the opening of which is narrow, and the disease kept up by an altered texture of parts, so that it is not disposed to heal. A fistula is incomplete or blind, when it has but one opening; and complete when there are two, the one communicating with an internal cavity, the other externally. It is lined, in its whole course, by a membrane which seems analogous to mucous membranes. Incomplete fistulae maybe internal or external. The former are those which open internally; the latter those which open externally. External incomplete fistulae are kept up by caries or necrosis of bones, by extraneous bodies in any of the living textures, or by purulent cavities, the walls of which have not become united. Internal incomplete fistulae generally soon become complete, since the discharge that escapes from them into the cavities into which they open has a constant tendency to make its way outwardly, and soon occasions ulceration of the integuments. Fistulae have received different names, according to the discharge which they afford, and the organs in which they are seated, -as lachrymal, biliary, salivary, synovial, urinary- Fistula urinae, Urias. The great object of treatment, in fistulous sores, is to bring on an altered condition of the parietes of the canal, by astringent or stimulating injections, caustics, the knife, pressure, &c. Those which are dependent on diseased bone, cartilage, tendon, &c, do not heal until after the exfoliation of the diseased part. Fistulae of excretory ducts are produced either by an injury of the duct itself or by the retention and accumulation of the fluids to which they have to give passage. Thus, Fistula lacrymalis, Dacryosyrinx, Emphragma lacrymale, Hydrops sacci lacrymalis, Dropsy of the lachrymal sac, commonly proceeds from the obliteration of the nasal ducts, or from atony of the lachrymal sac; which circumstances prevent the tears from passing into the nostrils.
Usage examples for fistula
Each person working in the medical industry sometimes needs to know how to define a word from medical terminology. For example - how to explain fistula? Here you can see the medical definition for fistula. Medical-dictionary.cc is your online dictionary, full of medical definitions.