What's the difference between polyp and theca?

Polyp


Definition:

  • (n.) One of the feeding or nutritive zooids of a hydroid or coral.
  • (n.) One of the Anthozoa.
  • (n.) Same as Anthozoa. See Anthozoa, Madreporaria, Hydroid.

Example Sentences:

  • (1) The frequency of gastric malignancies in the families of the women with gastric polyps was higher than in the controls and in men, 6.2, 3.1 and 2.4 percent, respectively (p less than 0.05, and p less than 0.025).
  • (2) In 20 patients (18.2%), visualization revealed uterine abnormalities, mainly newly added endometrial lesions, i.e., hyperplasia, polyps, endometritis, and synechiae.
  • (3) In the latter groups, specimens were taken from both polyp tissue and adjacent nasal mucosa.
  • (4) Age, histological type, number or location of the index diminutive polyps, were not associated with proximal lesions.
  • (5) In this paper, 5 patients with benign tumor (3 tubular adenoma, 1 leiomyoma and 1 fibroma) and 35 pseudotumor (26 cholesterol polyps and 9 inflammatory polyps) of the gallbladder are presented.
  • (6) The indication to lipomas removal is based on clinical remarks and differential diagnosis with adenomatous polyps.
  • (7) Genetic relations of skin tags, colon polyps, and colon cancer are a matter of ongoing research.
  • (8) Of 14 reported cases of Peutz-Jeghers syndrome associated with intestinal carcinoma, in only two was the tumor shown to originate in the polyp.
  • (9) Examples include the specific pattern of hypodontia seen before the development of iris dysplasia in Rieger syndrome, and the presence of supernumerary teeth and facial osteomas preceding malignant transformation of intestinal polyps in Gardner syndrome.
  • (10) All patients with distal polyps detected during flexible sigmoidoscopy underwent colonoscopy.
  • (11) Findings included squamous epithelium with acute and chronic inflammation, foreign body granuloma and aural polyps.
  • (12) Nine of these 10 patients had juvenile polyposis defined by the presence of at least three juvenile polyps; and eight of the nine had a family history of juvenile polyps.
  • (13) Eradication of the pedunculated and narrow-based polyps in stomach was almost totally successful by injection into the base.
  • (14) Included in the study were 193 small polyps, 0.5 cm in diameter, diagnosed on rectoromanoscopy and removed by mechanical way from 182 patients at the Proctologic Unit of the Department of Gastroenterology.
  • (15) Despite the fact that this approach has several caveats, consistent results obtained in short-term studies would more readily justify the undertaking of a large-scale, long-term controlled study using colon cancer or adenomatous polyp recurrence as an endpoint.
  • (16) After the polyp was removed, the cells decreased appreciably in number.
  • (17) Neoplasia was present in 22% of DPs located less than 60 cm from the anus, 73% of proximally located small polyps, and 32% of all DPs.
  • (18) Non-neoplastic polyps included 32 inflammatory polyps, 32 metaplastic polyps, 27 juvenile polyps and 17 Peutz-Jeghers type polyps.
  • (19) Polyps were detected ultrasonographically, but one third of them were overlooked by either cholecystography or CT. Nomenclature, pathological classification and management of the lesions are discussed.
  • (20) Every second polyp in the same region proved to be adenoma.

Theca


Definition:

  • (n.) A sheath; a case; as, the theca, or cell, of an anther; the theca, or spore case, of a fungus; the theca of the spinal cord.
  • (n.) The chitinous cup which protects the hydranths of certain hydroids.
  • (n.) The more or less cuplike calicle of a coral.
  • (n.) The wall forming a calicle of a coral.

Example Sentences:

  • (1) By 24 hr, rough endoplasmic reticulum in thecal cells increased from 4.2 to 7% of cell volume, while the amount in granulosa cells increased from less than 3.5% to more than 10%; the quantity remained relatively constant in the theca but declined to prestimulation values in the granulosa layer.
  • (2) In the small ovarian follicles, the immunostaining for TGF-beta 1 was present in oocytes, follicle cells, and granulosa and theca cell layers.
  • (3) These results suggest that TGF-alpha is synthesized in the ovary, perhaps in the theca-interstitial compartment.
  • (4) 125I-Labelled OTA consistently labelled the ovarian stroma and the theca interna, but not the corpora lutea, the granulosa cells or the theca externa.
  • (5) This leads, in turn, to triple-layering of the theca interna in follicles of the 2nd resting period.
  • (6) The electron microscopy examinations showed that a large amount of collagen fibers scattered under the albuginea layer and interwove with cells of albuginea and theca externa.
  • (7) The binding sites for human follicle-stimulating hormone were found in three tumors of epithelial origin (serous cystadenoma and mucinous cystadenoma) and in two of sex cord-stromal origin (theca cell tumor and theca-granulosa cell tumor).
  • (8) The purpose of this study was to compare the steroidogenic potential of the granulosa, theca, and medullary tissues from polycystic and normal ovaries.
  • (9) Those cells such as the granulosa cells of smaller follicles, the theca interna cells, the interstitial gland cells, oocytes, peritoneal epithelial cells were entirely negative.
  • (10) A significant increase in thymidine per follicle occurred at 15:00 h on Days 1 and 3 of the cycle from stage 2 (bilaminar follicle) to stage 6 (7-8 layers granulosa cells plus theca).
  • (11) Taken together, these and previous observations reveal fundamental differences in the cellular localization and hormonal regulation of ovarian IGF gene expression in that IGF-II gene expression (unlike IGF-I) is theca-interstitial (rather than granulosa) cell-specific, and is subject to down (as opposed to up) regulation in response to estrogenic stimulation.
  • (12) Marked infolding of both the granulosa and theca tissue in some follicles suggested early luteinization.
  • (13) Cellular localization studies revealed the IGFBP-3 gene to be exclusively expressed in the theca-interstitial rather than the granulosa cell compartment.
  • (14) The acquisition of catecholamine responsiveness was specific to hCG; if theca-interstitial cells were induced to differentiate with either prostaglandin E2 or cholera toxin, then isoproterenol did not enhance androgen synthesis.
  • (15) CR was primarily localized in interstitial gland cells and in theca interna cells but was not found in corpora lutea cells in the ovary during the estrous cycle.
  • (16) Specific LH receptors with common binding properties were detected in both granulosa and theca layers of large preovulatory follicles.
  • (17) The rat perforatorium is the part of the perinuclear theca that underlies the acrosomic system.
  • (18) One to several layers of theca interna cells just beneath membrana granulosa did not demonstrate any immunoreactivity of 3 beta-HSD or that of cytochrome P-450 17 alpha-hydroxylase.
  • (19) To test the possibility that progesterone released by granulosa cells may serve as a substrate for production of androgen in theca cells, specific antiserum was used to adsorb progesterone present in the medium.
  • (20) Very few adrenergic nerve fibres were present in the theca interna of follicles or in the corpus luteum.

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