What's the difference between cyst and pneumatocele?
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.
Pneumatocele
Definition:
(n.) A distention of the scrotum by air; also, hernia of the lungs.
Example Sentences:
(1) Computed tomography can clearly demonstrate the extent of the pneumatocele, and can show the maxillary pathology and the causative bony defect in the sinus.
(2) The pneumatoceles which appeared early in the course of the pneumonia resolved completely without complications.
(3) With respect to distribution of gas, 53% of patients presented pneumatocele, 38% of patients had pneumoencephalos, and 15% presented a laminar distribution of the gas.
(4) Radiological changes in the chest are prominent and include rapidly developing empyema, pneumonic consolidation, cavitation and pneumatocele formation.
(5) Two infants had pneumococcal pneumonia and bacteremia, complicated by pneumatocele formation.
(6) During the operation, we found that the intracerebral pneumatocele in the right frontal lobe communicated with the ipsilateral ethmoidal sinus, through which extracranial air ingressed and CSF egressed.
(7) A history of previous pneumonia should also be considered evidence to question the diagnosis of congenital respiratory cyst and suggest the possibility of a pneumatocele.
(8) The possible etiology of such a large spontaneous pneumatocele is discussed in the context of a review of the pertinent literature.
(9) In most of the remainder, chronic inflammation and fibrosis precluded differentiation from postinflammatory pneumatocele.
(10) The authors present a case of intracerebral expansive pneumatocele following a ethmoido-sphenoidal fracture by a bullet.
(11) This pneumatocele was unroofed and the fistula was temponaded by pericranial muscles and the Gelfomas sealed by tissue glue.
(12) His medical history also included two episodes of pneumonia complicated by a pneumatocele and empyema, purulent staphylococcal lymphadenitis, recurrent otitis media, and pneumococcal bacteremia.
(13) Scan are good prognostic factors (p less than 0.02 and p less than 0.04 respectively); on the other hand chronic alcoholism (p less than 0.03) and even more postoperative pneumatocele (p less than 0.007) are correlated with a poor result.
(14) Three patients with leucocyte related immune deficiency developed pneumatoceles during acute bacterial pneumonia.
(15) In spite of a chronically infected middle ear, there was no infection of the pneumatocele.
(16) The existence of a fluid level suggests the presence of blood (haemato-pneumatocele).
(17) Differentiation from atopic dermatitis should be made, because a long-term antistaphylococcal regime not only improves skin lesions but hinders the occurrence of lung abscesses and pneumatoceles.
(18) A case of a large intracranial pneumatocele arising from mastoid air cells is reported.
(19) A rare pulmonary manifestation of the acquired immunodeficiency syndrome or intravenous (IV) drug abuse is upper lobe cystic disease--pneumatoceles in Pneumocystis carinii pneumonia (PCP) and bullous emphysema in IV drug abuse.
(20) A case of community acquired staphylococcal pneumonia is reported with the unusual complication, in an adult, of multiple pneumatoceles.