What's the difference between cyst and pouch?

Cyst


Definition:

  • (n.) A pouch or sac without opening, usually membranous and containing morbid matter, which is accidentally developed in one of the natural cavities or in the substance of an organ.
  • (n.) In old authors, the urinary bladder, or the gall bladder.
  • (n.) One of the bladders or air vessels of certain algae, as of the great kelp of the Pacific, and common rockweeds (Fuci) of our shores.
  • (n.) A small capsule or sac of the kind in which many immature entozoans exist in the tissues of living animals; also, a similar form in Rotifera, etc.
  • (n.) A form assumed by Protozoa in which they become saclike and quiescent. It generally precedes the production of germs. See Encystment.

Example Sentences:

  • (1) However it is important to recognize these cysts so that correct surgical management is offered to the patient.
  • (2) The increase in red blood cell mass was associated with an elevation in erythropoietic stimulatory activity in serum, pleural fluid, and tumor-cyst fluid as determined by the exhypoxic polycythemic mouse assay.
  • (3) Diagnostic work-up and management of intracranial arachnoid cysts are still controversial.
  • (4) The position of the cyst supports the theory that branchial cysts are congenital in origin.
  • (5) These cases show that an examination of the whole neuraxis is as important in patients with midline posterior fossa cysts as it is in patients with developmental syringomyelia or Chiari I malformation.
  • (6) The exception to this rule is a cyst which can be safely aspirated under controlled conditions.
  • (7) Aneurysmal bone cyst is an uncommon benign lesion that rarely presents in the craniofacial region.
  • (8) It is especially efficacious in evaluating patients with cystic lesions, especially those with complex cysts not clearly of water density.
  • (9) In cases in which CT was also performed, it revealed corresponding hypodensities in two infarctions, but failed to reveal the foci of gliosis (or noncavital infarction), demyelination, or brain cyst.
  • (10) This light microscopic comparison of viable FDA- and nonviable PI-stained cysts of G. muris demonstrates that 2 types of cysts can be distinguished and implies that structural differences can be used to identify these subpopulations of cysts.
  • (11) Quantitative measurements of image contrast were carried out for B-mode images of anechoic spheres (cysts) embedded in a random scattering medium.
  • (12) The resistance of GSA 65 to proteolytic degradation, together with previous immunofluorescence data that indicate the antigen is an integral part of the G. lamblia cyst wall, suggests that this molecule may play a role in maintaining the integrity of the cyst in vivo.
  • (13) Radiographic examination revealed that three of the cysts had increased is size, three had decreased in size, three had not changed in size, and two had disappeared; no evaluation could be made on two.
  • (14) Zinc alpha-2 glycoprotein (ZnGP) was measured in human breast microcysts, breast secretions, breast cyst fluid and serum.
  • (15) The diagnosis of meningeal cyst was confirmed in a non-invasive way by MRI showing a mass with the same signal intensities as CSF on both T1 and T2 weighted images.
  • (16) Furthermore, the different types of adrenal cysts reported in the literature and the differential diagnosis from other adrenal cystic lesions, mainly tumors and infections, are discussed.
  • (17) Splenectomy is the operation of choice for cysts of the spleen in children.
  • (18) The concentration of potassium (K+) and sodium (Na+) was measured in breast cyst fluid (BCF) from 611 cysts greater than 3 ml aspirated in 520 women with gross cystic disease of the breast.
  • (19) Although bronchogenic cysts may involve the mediastinum, they have rarely been responsible for significant upper airway obstruction.
  • (20) Radiographically the bone cyst distinguishes itself by its central localisation in the metaphysis, where as the giant cell tumor has an excentric position in the epiphysis with a tendency of extending into the metaphysis.

Pouch


Definition:

  • (n.) A small bag; usually, a leathern bag; as, a pouch for money; a shot pouch; a mail pouch, etc.
  • (n.) That which is shaped like, or used as, a pouch
  • (n.) A protuberant belly; a paunch; -- so called in ridicule.
  • (n.) A sac or bag for carrying food or young; as, the cheek pouches of certain rodents, and the pouch of marsupials.
  • (n.) A cyst or sac containing fluid.
  • (n.) A silicle, or short pod, as of the shepherd's purse.
  • (n.) A bulkhead in the hold of a vessel, to prevent grain, etc., from shifting.
  • (v. t.) To put or take into a pouch.
  • (v. t.) To swallow; -- said of fowls.
  • (v. t.) To pout.
  • (v. t.) To pocket; to put up with.

Example Sentences:

  • (1) Five patients have been examined by defecography before and four after closure of a loop ileostomy performed to cover healing of the pouch and ileoanal anastomoses.
  • (2) Rats were injected subcutaneously with 10 ml of air into the dorsal skin to make an air-pouch and with 2 ml of antiserum at an appropriate dilution for passive sensitization, and then 5 ml of air was removed.
  • (3) In group III, multiple confluent ulcers were produced in the cheek pouch on one side, with a single ulcer in the contralateral cheek pouch; no drug was applied, and the tissues were prepared for histology.
  • (4) The question addressed by this study is whether patients with other pharyngeal pouch malformations could also have immunologic abnormalities.
  • (5) During sixty-six months, 145 Kock pouches were constructed: 79 for continent cutaneous diversion (44 men, 35 women), 54 bladder replacements by men, 12 ileo-rectal diversions (10 women, 2 men).
  • (6) Cheek pouches were removed from BIO 87.20 male hamsters 4 weeks, 8 months or 18 months of age.
  • (7) Acid and pepsin output from the denervated pouch in response to pentagastrin and food decreased significantly (P less than 0.001) after parenteral feeding and returned to control levels after the dogs resumed a normal diet.
  • (8) Type II had the anastomosis too high on the gastric pouch, type III was due to an obstructing marginal ulcer, and type IV had a pouchlike deformity develop in the upper jejunum at the anastomosis that gradually compressed the outflow tract.
  • (9) A series of 60 children whose urine was stored in pouches formed in whole or in part from bowel were reviewed to establish the effect on growth in height and weight.
  • (10) Injection of ovalbumin into subcutaneous air pouches prepared on the backs of rats previously sensitised to the antigen resulted in the induction of a small and transient accumulation of inflammatory fluid with a predominantly polymorph cell infiltrate.
  • (11) sp., from Chalcophaps i. indica, has three or four testes, and a cirrus pouch 93 to 108 mum long, 28 to 45 mum wide, and its egg capsules are 10 to 12 mum long, seven to nine mum wide, each containing four to six eggs.
  • (12) Theoretically, the low-pressure system afforded by the Kock pouch may be superior in long-term safety to that provided by reservoirs made from other bowel segments.
  • (13) Osteo-inductive activity of each protein fraction was determined by implantation in the quadriceps muscle pouch of mice.
  • (14) A study of 78 cases of gastrectomy in which two reconstruction procedures Roux-en-Y + pouch and interposition + pouch were compared and which is still in progress, yielded the following results: 1.
  • (15) Two of three noninoculated pouch mates acquired infections during the study based on examinations of feces and tissue sections of all eight opossums.
  • (16) In conclusion, functional results were satisfactory and quality of life was excellent after ileal pouch-anal anastomosis; neither deteriorated as patients aged over an 8-year period after operation.
  • (17) We present a computer-aided videodensitometric method for the determination of oxygen saturation in red blood cells flowing through capillaries of the hamster cheek pouch retractor muscle.
  • (18) The pouch was then removed and ex vivo measurements were repeated.
  • (19) As part of our investigation of the behaviour of suture materials, 3-0 sutures of polydioxanone and Maxon were enclosed in nylon pouches, a technique developed for in vivo experiments to prevent cellular interaction with implanted devices.
  • (20) Subcutaneous injection of sterile air in rodents results in the formation of an air pouch with a lining morphologically similar to synovium (Edwards et al., 1981).