Parasitic or foreign-body cysts, from the inflammatory reaction induced by such parasites as the echinococcus (hydatid cyst) or by the presence of various kinds of foreign bodies.
The sheep is placed with its feet tied upon a table or bench, and the head carefully examined, when a soft place may often be detected, indicating that the hydatid lies underneath.
A portion of the skin is dissected back and the trocar and canula introduced, when the hydatid will often come away as the trocar is withdrawn.
This hydatid develops from the ova of the tape worm, in the animal's body, whence it has gained an entrance, with the grass which constitutes the cattle or sheep's food upon which it has been voided by dogs and other animals.
The part of the human economy most frequently attacked by the ravages of the Echinococcus is the liver, in the substance of which it gives rise to the formation of a hydatid tumour.
Buck mentions a case ofhydatid cysts in the wall of the left ventricle, with rupture of the cysts and sudden death.
Lieutaud cites a case, reported by Blanchard, in which, in a case of hydatid disease, the stomach contained 90 pounds of fluid.
His patient was a man of thirty-eight, a victim of hydatid disease of the liver, from whom he withdrew one gallon of offensive material.
The echinococcus is a tiny cestode which is the factor in the production of the well-known hydatid cysts which may be found in any part of the body.
Occasionally the echinococcus embryo undergoes imperfect development, constituting the multilocular hydatid tumor, rarely found elsewhere than in the liver.
The pylorus was the seat of a hydatid cyst which extended into the duodenum.
In Iceland, in which it is said every peasant owns half a dozen dogs, which share his dwelling with him, it is also reported that one-sixth of all the deaths are due to the hydatid parasite.
The compound scolex thus forms a sac or a group of sacs, the basis of hydatid tumors.
This tape-worm, in its mature state the most insignificant looking of its kind, though not strictly an intestinal worm of man, in the juvenile condition is one of his most dangerous parasites, as being the source of hydatid tumors.
Favorable results in the treatment ofhydatid tumors are only to be expected through surgical means when they are accessible.
The tendency of the treatment of hydatid cysts has constantly been toward simplicity, and the success occurs in a direct ratio thereto.
It is, however, probable that they migrate directly to their destination, for hydatid tumors are also frequently seated in the neighboring organs and the abdominal walls.
If the walls of the abdomen are sufficiently thin, the tumor large enough, and if made up of many daughter vesicles, there may be evoked by palpation the very characteristic sign known as hydatid purring.
A parasite of man and of many domestic and wild animals, forming compound cysts or tumors (called hydatid cysts) in various organs, but especially in the liver and lungs, which often cause death.
So called because forming little granular bodies, each armed with hooklets and disposed upon the inner wall of the hydatid cysts.
The main constituent of the walls of hydatid cysts; a nitrogenous body, which, by decomposition, yields a dextrogyrate sugar, susceptible of alcoholic fermentation.
Hydatid cysts and fibromas are also met with in this situation, and they too may be multiple.
Hydatid and cysticercus cysts have also been met with in the tongue.
This study of the hydatidparasites remains a remarkable contribution to medicine down even to our own day.
As early as 1805 he read a paper on hydatid cysts.
Mr Hutchinson observed an hydatid in a horse’s eye, and Mr Vincent noticed lameness, as resulting from hydatids.
This granular matter is prolonged beyond the mass of Echinococci into a short pedicle common to the whole, and by which the granulation is attached to the interior of the hydatid cyst.
Rose, formerly of Swaffham, Norfolk, discovered an undoubted example of polycephalous hydatid in the rabbit, the parasite in question bearing a very close resemblance to Cœnurus cerebralis.
As the scope and tendency of this work preclude the textual admission of clinical details, I must limit my remaining observations to the pathology of hydatid disease.
Dr Thomas writes as follows: “It is well known that Australia presents an extraordinary prevalence of hydatid disease, but, as far as I know, no definite statistics have been published to illustrate the fact.
It must not be forgotten, however, as Leuckart and Numan have both reminded us, that Eichler discovered an hydatid about the size of a goose egg in the subcutaneous tissue of a sheep.
By this inspection I have obtained a tolerably accurate knowledge of the pathology, localisation and effects produced by the presence of bladder-worms in at least 200 unpublished cases of hydatid disease.
The common hydatid (Echinococcus veterinorum), though not of frequent occurrence, is occasionally productive of fatal consequences.
There is a renalhydatid (presented by Dr Pass, of Warwick) which was obtained from a lunatic, its presence being “quite unsuspected during life.
One case, in which hydatid of the kidney was present, accompanied by malignant disease of bladder, with stricture, was not returned as a case of hydatid causing death.
Or take hydatid disease, which occurs in all parts of the world, and in some countries (Australia, Iceland) is terribly common.
So-called hydatid disease is due to the cystic growth produced by the larva of a species of tapeworm (Echinococcus) inhabiting the intestine of the dog.
The liver is by far the most common site of hydatid cysts in the human subject.
Pfeiler, who has worked at the serum diagnosis of hydatid disease, regards the complement deviation method as the most reliable; he believes that a positive reaction may almost be regarded as absolutely diagnostic of an echinococcal lesion.
In some cases, and particularly in parasitic diseases such as trichiniasis and hydatid disease, the eosinophile leucocytes also show a proportionate increase (eosinophilia).
Fluctuation is detected when the cyst approaches the surface, and it is then also that percussion may elicit the "hydatid thrill" or fremitus.
Hydatid cysts of muscle resemble those developing in other tissues.
With the exception of hydatid cysts, cysts in the interior of bone are the result of the liquefaction of solid tissue; this may be that of chondroma, myeloma, or sarcoma, but more commonly of the marrow in osteomyelitis fibrosa.
Parasitic cysts are produced by the growth within the tissues of cyst-forming parasites, the best known being the tænia echinococcus, which gives rise to the hydatid cyst.
The coats of the hydatid are disposed in several layers, one of which appears to possess a muscular power.
As relates to outline, this hydatid bears no small resemblance to a Florence flask.
Hydatid in the brain of a sheep (from a drawing by my friend Dr Kirk of Deal); a.
A couple of incisions, forming when completed the letter T, are made in the integument covering the soft part of the bone under which the hydatid is supposed to be.
The hydatid is found of all sizes, from that of a pea to that of Fig.
It is the many-headed hydatidof the brain, Coenurus Cerebralis of naturalists.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "hydatid" in a variety of sentences. We hope that you will now be able to make sentences using this word.
