| ESS | empty sella syndrome; endostreptosin; erythrocyte-sensitizing substance; euthyroid sick syndrome; ev... |
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| PES | Patient Escort Service; photoelectron spectroscopy; physicians' equity services; polyethylene sulfon... |
| Sa | the most anterior point of the anterior contour of the sella turcica [point]; saline; Staphylococcus... |
| Si | the most anterior point on the lower contour of the sella turcica [point]; silicon |
| Sp | the most posterior point on the posterior contour of the sella turcica; species; specific; specimen;... |
| ESS | Empty sella syndrome |
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| ghost | 1. The spirit; the soul of man. "Then gives her grieved ghost thus to lament." (Spenser) 2. The disembodied soul; the soul or spirit of a deceased person; a spirit appearing after death; an apparition; a specter. "The mighty ghosts of our great Harrys rose." (Shak) "I thought that I had died in sleep, And was a blessed ghost." (Coleridge) 3. Any faint shadowy semblance; an unsubstantial image; a phantom; a glimmering; as, not a ghost of a chance; the ghost of an idea. "Each separate dying ember wrought its ghost upon the floor." (Poe) 4. A false image formed in a telescope by reflection from the surfaces of one or more lenses. <zoology> Ghost moth the third person in the Trinity. To give up or yield up the ghost, to die; to expire. "And he gave up the ghost full softly." (Chaucer) "Jacob . . . Yielded up the ghost, and was gathered unto his people". (Gen. Xlix. 33) Origin: OE. Gast, gost, soul, spirit, AS. Gast breath, spirit, soul; akin to OS. Gst spirit, soul, D. Geest, G. Geist, and prob. To E. Gaze, ghastly. Source: Websters Dictionary (01 Mar 1998) |
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| ghost cell | <haematology> A red blood cell which has had all of its cytoplasmic contents removed by cell lysis so that only its outer cytoplasmic membrane remains. (17 Dec 1997) |
| ghost cell glaucoma | Glaucoma occurring after vitrectomy, arising from erythrocyte membranes blocking outflow channels of aqueous humor. (05 Mar 2000) |
| ghost corpuscle | A hypochromic, crescent-shaped erythrocyte, probably resulting from artifactual rupture of a red cell with loss of haemoglobin. Synonym: achromacyte, achromatocyte, ghost corpuscle, phantom corpuscle, Ponfick's shadow, shadow corpuscle, shadow, Traube's corpuscle. Origin: G. A-priv. + chroma, colour, + kytos, hollow (cell) (05 Mar 2000) |
| ghost tooth | A tooth with reduced radiodensity seen in regional odontodysplasia. (05 Mar 2000) |
| resealed ghost | <haematology> Membrane shells formed by lysis of erythrocytes resealed by adjusting the cation composition of the medium. Relatively impermeable, although more permeable than the original membrane. (18 Nov 1997) |
| sella | 1. A seat for a rider, usually made of leather, padded to span comfortably a horse's back, furnished with stirrups for the rider's feet to rest in, and fastened in place with a girth; also, a seat for the rider on a bicycle or tricycle. 2. A padded part of a harness which is worn on a horse's back, being fastened in place with a girth. It serves various purposes, as to keep the breeching in place, carry guides for the reins, etc. 3. A piece of meat containing a part of the backbone of an animal with the ribs on each side; as, a saddle of mutton, of venison, etc. 4. A block of wood, usually fastened to some spar, and shaped to receive the end of another spar. 5. <machinery> A part, as a flange, which is hollowed out to fit upon a convex surface and serve as a means of attachment or support. 6. <zoology> The clitellus of an earthworm. 7. The threshold of a door, when a separate piece from the floor or landing; so called because it spans and covers the joint between two floors. <medicine> Saddle bar, any thin plicated bivalve shaell of the genera Placuna and Anomia; so called from its shape. Synonym: saddle oyster. Origin: OE. Sadel, AS. Sadol; akin to D. Zadel, G. Sattel, OHG. Satal, satul, Icel. Sothull, Dan. & Sw. Sadel; cf. Russ. Siedlo; all perh. Ultimately from the root of E. Sit. Source: Websters Dictionary (01 Mar 1998) |
| sella turcica | <anatomy> A transverse depression crossing the midline on the superior surface of the body of the sphenoid bone and containing the pituitary gland. It is named "turkish saddle" from its resemblance to the saddle used by turks. (12 Dec 1998) |
| diaphragm of sella | A fold of dura mater extending transversely across the sella turcica and roofing over the hypophyseal fossa; it is perforated in its centre for the passage of the infundibulum. Synonym: diaphragma sellae, diaphragm sellae, tentorium of hypophysis. (05 Mar 2000) |
| empty sella | A sella turcica, often enlarged, that contains no discernible pituitary gland; may be primarily due to an incompetent sellar diaphragm with compression of the pituitary gland by herniating arachnoid or secondarily due to surgery or radiotherapy. (05 Mar 2000) |
| empty sella syndrome | <radiology> Aetiology, idiopathic, most commonly reported in middle-aged obese women (associated with DM, hypertension, normal pituitary function), secondary, pituitary adenoma, surgery or irradiation, communicating hydrocephalus, familial (very rare) X-ray findings: sella normal or increased, intrasellar herniation of subarachnoid space, symptoms: headache, visual disorders, with or without decreased pituitary function, cerebrospinal fluid rhinorrhoea (12 Dec 1998) |
| erythrocyte ghost | <cell biology> The membrane and cytoskeletal elements of the erythrocyte devoid of cytoplasmic contents, but preserving the original morphology. (18 Nov 1997) |
| J-sella deformity | Pear-shaped or J-shaped deformity of sella turcica caused by increased pressure on growing sphenoid bone; noted in the mucopolysaccharide storage diseases. (05 Mar 2000) |
| j-shaped sella | <radiology> Cretinism (hypothyroidism), optic glioma, neurofibromatosis, Hurler syndrome (MPS I), mild arrested hydrocephalus, normal variant (12 Dec 1998) |
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