(n.) A small circumscribed tumor of the eyelid caused by retention of secretion, and by inflammation of the Melbomian glands.
Example Sentences:
(1) We describe a technique of chalazion excision in which multiple vertical incisions spaced approximately 1 mm apart are used to provide wide exposure of the chalazion.
(2) A 34-year-old patient suffered a sudden and permanent loss of vision due to segmental optic atrophy prior to a chalazion excision under local anesthesia in the right upper and lower lids, with 2 ml Novocain 2%.
(3) The use of a small trephine for chalazion surgery or tarsal biopsy is described.
(4) Total resolution of chalazion was achieved in 47 of 50 patients.
(5) Histologic examination of excised "chalazion"-material must be considered mandatory in all patients with a typical symptomatology, recurrence at the same site, high age, unilateral therapy-resistant keratoconjunctivities and involved regional lymphnodes.
(6) The average clinical course revealed that approximately 50% of chalazions can be expected to be cured or improved with medical treatment within 1 month.
(7) CO2 laser excision of chalazion can be done successfully in the office with minimal to no bleeding and with complete extirpation of the granulomous tissue.
(8) The diagnosis of the often occurring "chalazion" usually puts no problems in diagnostic and therapeutical view.
(9) The authors describe some cases, where during a longer period of time the malignant character of the disease was not diagnosed due to the misdiagnosed "chalazion".
(10) The results highlight what ophthalmologists consider to be problems in chalazion management and suggest that a chalazion operation should be treated with the same respect given any other operation.
(11) The first was derived from a lung primary diagnosed two months prior and presented as a solitary tender mass mimicking an acutely inflamed recurrent chalazion.
(12) The operation is performed with the use of a Chalazion forceps (Desmarres) which steps all bleeding.
(13) The following are typical problems which may require routine referral: Persistence of the problem not relieved by simple measures, Recurrent disorders of uncertain diagnosis, Eyelid swelling such as chalazion, cysts, basal cell carcinoma, Gradual loss of vision, for example cataract, macular degeneration.
(14) Space-occupying processes in the eyelids can either be due to lesions which are specific for the eyelids, such as a chalazion or a meibomian carcinoma, or to non-specific lesions of the skin or ocular adnexa.
(15) An eight-year-old boy underwent reexcision of an upper lid chalazion under general anesthesia.
(16) The intramuscular injection of CLDM-2-P, 300 approximately 1800 mg daily, against suppurative ocular infections revealed excellent effects on cases of external hordeolum, acute chalazion, lid abscess, orbital phlegmone, corneal infiltration, corneal ulcer, and iridocyclitis purulenta.
(17) Thus immunohistochemical staining for ACE may be of help in differentiating conjunctival granulomatous tissue of a chalazion from sarcoid granuloma.
(18) There is no need for eyelid eversion or compression with a chalazion clamp.
(19) Both clinically and histologically, sebaceous carcinoma may masquerade as benign or less invasive conditions such as chalazion, blepharitis, conjunctivitis, meibomitis, superior limbic keratoconjunctivitis, basal cell carcinoma and carcinoma in situ, resulting in delayed diagnosis and treatment.
(20) Neoplastic proliferation of the meibomian glands is most often characterized by a tarsal tumor of the eyelid conjunctiva, having the clinical appearance of a chalazion.
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.