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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

ductal carcinoma
<tumour> A carcinoma derived from epithelium of ducts, e.g., in the breast or pancreas. ... (05 Mar 2000) ...

ductal carcinoma in situ
<oncology, tumour> A cancer inside the ducts of breast that has not grown through the wall of the duct into the surrounding tissues. Sometimes referred to as a precancer. Good prognosis is involved with in situ cancers. ... (09 Oct 1997) ...

ductal hyperplasia
Hyperplasia characterised by intraductal proliferation of epithelial cells, e.g., in the breast. ... (05 Mar 2000) ...

ductal papilloma
<oncology, tumour> Small noncancerous finger-like growths in the mammary ducts that may cause a bloody nipple discharge. Commonly found in women 45 to 50 years of age. ... (09 Oct 1997) ...

ductile
Denoting the property of a material that allows it to be bent, drawn out (as a wire), or otherwise deformed without breaking. ... Origin: L. Ductilis, capable of being led or drawn ... (05 Mar 2000) ...

ductin
<protein> Name for the 16 kD transmembrane subunit of the V-type ATPase, reflecting a controversial) view that it may be a multifunctional transmembrane pore protein, also involved (for example) in gap junction formation. ... See: connexin. ... (18 Nov 1997) ...

duction
1. The act of leading, bringing, conducting. ... 2. In ophthalmology, ocular rotations with reference to one eye; usually additionally designating direction of movement of the eye; e.g., rotation toward the nose, adduction; toward the temple, abduction; upward, supra-or sursumduction; downward, deorsumduction; of the upper pole of one cornea, cyclod …

ductless
Having no duct; denoting certain glands having only an internal secretion. ... (05 Mar 2000) ...

ductless glands
Synonym for endocrine glands ... Ductless glands that secrete substances which are released directly into the circulation and which influence metabolism and other body functions. ... (12 Dec 1998) ...

ducts of Skene's glands
Synonym for paraurethral ducts ... Inconstant ducts along the side of the female urethra that convey the mucoid secretion of Skene's glands to the vestibule. ... Synonym: ductus paraurethrales, ducts of Skene's glands, Schuller's ducts. ... (05 Mar 2000) ...

ductular
Relating to a ductule. ... (05 Mar 2000) ...

ductule
A minute duct. ... Synonym: ductulus. ... (05 Mar 2000) ...

ductuli aberrantes
Synonym for aberrant ductules ... The superior or inferior diverticula of the epididymis. ... Synonym: ductuli aberrantes, aberrant ducts, ductus aberrantes, vasa aberrantes. ... (05 Mar 2000) ...

ductuli biliferi
Synonym for biliary ductules ... The excretory ducts of the liver that connect the interlobular ductules to the right (or left) hepatic duct. ... Synonym: ductuli biliferi, canalicular ducts, ductus biliferi, tubuli biliferi. ... (05 Mar 2000) ...

ductuli interlobulares
Synonym for interlobular ductules ... Bile ductules occupying portal canals between hepatic lobules that open into the ductuli biliferi. ... Synonym: ductuli interlobulares. ... (05 Mar 2000) ...

ductuli paroophori
Tubular remnants of the embryonic mesonephros forming the paroophoron. ... Synonym: tubuli paroophori. ... (05 Mar 2000) ...

ductuli prostatici
Synonym for prostatic ductules ... About 20 minute canals that receive the prostatic secretion from the glandular tubules and discharge it through openings on either side of the urethral crest in the posterior wall of the urethra. ... Synonym: ductuli prostatici, ductus prostatici, prostatic ducts. ... (05 Mar 2000) ...

ductuli transversi epoophori
Synonym for transverse ductules of epoophoron ... A series of 10 to 15 short tubules that open into the longitudinal duct of the epoophoron and represent vestiges of the mesonephric duct. ... Synonym: ductuli transversi epoophori, tubuli epoophori. ... (05 Mar 2000) ...

ductulus
Synonym: ductule. ... Origin: Mod. L. Dim. Of L. Ductus, duct ... (05 Mar 2000) ...

ductulus aberrans inferior
Synonym for inferior aberrant ductule ... A narrow, coiled tubule frequently connected to the first part of the ductus deferens or to the lower part of the ductus epididymitis. ... Synonym: ductulus aberrans inferior, Haller's vas aberrans. ... (05 Mar 2000) ...

ductulus aberrans superior
Synonym for superior aberrant ductule ... A diverticulum from the head of the epididymis. ... Synonym: ductulus aberrans superior. ... (05 Mar 2000) ...

ductulus alveolaris
Synonym for alveolar duct ... The part of the respiratory passages distal to the respiratory bronchiole; from it arise alveolar sacs and alveoli, the smallest of the intralobular duct's in the mammary gland, into which the secretory alveoli open. ... Synonym: ductulus alveolaris. ... (05 Mar 2000) ...

ductulus efferens testis
Synonym for efferent ductules of testis ... One of 12 to 14 small seminal ducts leading from the testis to the head of the epididymis. ... Synonym: ductulus efferens testis, vas efferens, efferent duct. ... (05 Mar 2000) ...

ductus
A duct or walled passageway. Our word duct is a contraction of the Latin word ductus meaning leading. The Romans, however, preferred the word canalis meaning a pipe or gutter for a conduit. ... (12 Dec 1998) ...

ductus aberrantes
Synonym for aberrant ductules ... The superior or inferior diverticula of the epididymis. ... Synonym: ductuli aberrantes, aberrant ducts, ductus aberrantes, vasa aberrantes. ... (05 Mar 2000) ...

ductus arteriosus
Before birth, the blood headed from the heart (via the pulmonary artery) for the lungs is shunted away from the lungs and returned to the greatest of arteries (the aorta). The shunt is through a short vessel called the ductus arteriosus. When the shunt is open, it is said to be patent (pronounced pa'tent). The patent ductus arteriosus (PDA) usually …

ductus arteriosus, patent
Abnormal persistence of an open lumen in the ductus arteriosus after birth, the direction of flow being from the aorta to the pulmonary artery, resulting in recirculation of arterial blood through the lungs. ... (12 Dec 1998) ...

ductus biliferi
Synonym for biliary ductules ... The excretory ducts of the liver that connect the interlobular ductules to the right (or left) hepatic duct. ... Synonym: ductuli biliferi, canalicular ducts, ductus biliferi, tubuli biliferi. ... (05 Mar 2000) ...

ductus caroticus
A portion of the embryonic dorsal aorta between points of juncture with the third and fourth arch arteries; it disappears early in development. ... Synonym: carotid duct. ... (05 Mar 2000) ...

ductus choledochus
Synonym for common bile duct ... <anatomy> A duct that carries bile from the liver and gallbladder to the duodenum (first part of the small intestine). ... (27 Sep 1997) ...

ductus cochlearis
Synonym for cochlear duct ... Spiral tube in the bony canal of the cochlea, lying on its outer wall between the scala vestibuli and scala tympani. ... (12 Dec 1998) ...

ductus cysticus
Synonym for cystic duct ... <anatomy> A bile duct that connects the gallbladder to the common bile duct. A gallstone that blocks the cystic duct can lead to inflammation and infection of the gallbladder. ... See: common bile duct. ... (27 Sep 1997) ...

ductus deferens
The secretory duct of the testicle, running from the epididymis, of which it is the continuation, to the prostatic urethra where it terminates as the ejaculatory duct. ... Synonym: deferent canal, deferent duct, spermatic duct, spermiduct, testicular duct, vas deferens. ... (05 Mar 2000) ...

ductus dorsopancreaticus
Synonym for accessory pancreatic duct ... The excretory duct of the head of the pancreas, one branch of which joins the pancreatic duct, the other opening independently into the duodenum at the lesser duodenal papilla. ... Synonym: ductus pancreaticus accessorius, Bernard's canal, Bernard's duct, ductus dorsopancreaticus, Santorini's canal, Santorini …

ductus ejaculatorius
Synonym for ejaculatory duct ... The duct formed by the union of the deferent duct and the excretory duct of the seminal vesicle, which opens into the prostatic urethra. ... Synonym: ductus ejaculatorius, spermiduct. ... (05 Mar 2000) ...

ductus endolymphaticus
Synonym for endolymphatic duct ... Duct connecting the endolymphatic sac with the membranous labyrinth. ... (12 Dec 1998) ...

ductus epididymidis
Synonym for duct of epididymis ... A convoluted tube into which the efferent ductules open and which itself terminates in the ductus deferens. ... Synonym: ductus epididymidis. ... (05 Mar 2000) ...

ductus excretorius
Synonym for excretory duct ... A duct carrying the secretion from a gland or a fluid from any reservoir. ... Synonym: ductus excretorius. ... (05 Mar 2000) ...

ductus glandulae bulbourethralis
Synonym for duct of bulbourethral gland ... The long slender duct on each side passing down through the inferior fascia of the urogenital diaphragm to enter the bulb of the penis and course forward 2 or 3 cm before terminating in the urethra. ... Synonym: ductus glandulae bulbourethralis. ... (05 Mar 2000) ...

ductus hemithoracicus
Synonym for hemithoracic duct ... An accessory thoracic duct, usually emptying into the thoracic duct but sometimes discharging independently into the right subclavian vein. ... Synonym: ductus hemithoracicus. ... (05 Mar 2000) ...

ductus hepaticus communis
Synonym for common hepatic duct ... The part of the biliary duct system that is formed by the confluence of right and left hepatic ducts. at the porta hepatis it is joined by the cystic duct to become the common bile duct. ... Synonym: ductus hepaticus communis, hepatocystic duct. ... (05 Mar 2000) ...

ductus hepaticus dexter
Synonym for right hepatic duct ... The duct that transmits bile to the common hepatic duct from the right half of the liver and the right part of the caudate lobe. ... Synonym: ductus hepaticus dexter. ... (05 Mar 2000) ...

ductus hepaticus sinister
Synonym for left hepatic duct ... The duct that drains bile from the left half of the liver, including the quadrate lobe and the left part of the caudate lobe. ... Synonym: ductus hepaticus sinister. ... (05 Mar 2000) ...

ductus incisivus
Synonym for incisive duct ... A rudimentary duct, or protrusion of the mucous membrane into the incisive canal, on either side of the anterior extremity of the nasal crest. ... Synonym: ductus incisivus. ... (05 Mar 2000) ...

ductus lactiferi
Synonym for lactiferous ducts ... The ducts, numbering 15 or 20, which drain the lobes of the mammary gland; they open at the nipple. ... Synonym: ductus lactiferi, canalicular ducts, galactophore, galactophorous canals, galactophorous ducts, mamillary ducts, mammary ducts, milk ducts, tubuli galactophori, tubuli lactiferi. ... (05 Mar 2000) ...

ductus lingualis
A pit on the upper surface of the tongue at the apex of the sulcus terminalis; it marks the point of origin of the ductus thyroglossus of the embryo; known more commonly as the foramen caecum. ... (05 Mar 2000) ...

ductus lobi caudati dexter
Synonym for right duct of caudate lobe ... The bile duct from the right half of the caudate lobe, a tributary to the right hepatic duct. ... Synonym: ductus lobi caudati dexter. ... (05 Mar 2000) ...

ductus lobi caudati sinister
Synonym for left duct of caudate lobe ... A tributary to the left hepatic duct draining bile from the left half of the caudate lobe. ... Synonym: ductus lobi caudati sinister. ... (05 Mar 2000) ...

ductus lymphaticus dexter
Synonym for right lymphatic duct ... One of the two terminal lymph vessels, a short trunk, about 2 cm in length, formed by the union of the right jugular lymphatic vessel and vessels from the lymph nodes of the right superior limb, thoracic wall, and both lungs; it lies on the right side of the root of the neck and empties into the right brachioceph …

ductus mesonephricus
Synonym for mesonephric duct ... A duct in the embryo draining the mesonephric tubules; in the male it becomes the ductus deferens; in the female it becomes vestigial. ... See: longitudinal duct of epoophoron. ... Synonym: ductus mesonephricus, wolffian duct. ... (05 Mar 2000) ...

ductus nasolacrimalis
Synonym for nasolacrimal duct ... The passage leading downward from the lacrimal sac on each side to the anterior portion of the inferior meatus of the nose, through which tears are conducted into the nasal cavity. ... Synonym: ductus nasolacrimalis, nasal duct. ... (05 Mar 2000) ...

ductus nodes
The highest nodes in a left pneumonectomy specimen that lie on the upper aspect of the left main branches and are accessed by dividing the ligamentum arteriosum. ... (05 Mar 2000) ...

ductus pancreaticus
Synonym for pancreatic duct ... The excretory duct of the pancreas that extends through the gland from tail to head where it empties into the duodenum at the greater duodenal papilla. ... Synonym: ductus pancreaticus, Hoffmann's duct, Wirsung's canal, Wirsung's duct. ... (05 Mar 2000) ...

ductus pancreaticus accessorius
Synonym for accessory pancreatic duct ... The excretory duct of the head of the pancreas, one branch of which joins the pancreatic duct, the other opening independently into the duodenum at the lesser duodenal papilla. ... Synonym: ductus pancreaticus accessorius, Bernard's canal, Bernard's duct, ductus dorsopancreaticus, Santorini's canal, Santorini …

ductus paramesonephricus
Synonym for paramesonephric duct ... Either of the two paired embryonic tubes extending along the mesonephros roughly parallel to the mesonephric duct and emptying into the cloaca; in the female, the upper parts of the ducts form the uterine tubes, while the lower fuse to form the uterus and part of the vagina; in the male, vestiges of the ducts for …

ductus paraurethrales
Synonym for paraurethral ducts ... Inconstant ducts along the side of the female urethra that convey the mucoid secretion of Skene's glands to the vestibule. ... Synonym: ductus paraurethrales, ducts of Skene's glands, Schuller's ducts. ... (05 Mar 2000) ...

ductus parotideus
Synonym for parotid duct ... The duct of the parotid gland opening from the cheek into the vestibule of the mouth opposite the neck of the superior second molar tooth. ... Synonym: ductus parotideus, Blasius' duct, Stensen's duct, Steno's duct. ... (05 Mar 2000) ...

ductus perilymphaticus
Synonym for perilymphatic duct ... A fine canal connecting the perilymphatic space of the cochlea with the subarachnoid space. ... Synonym: ductus perilymphaticus, aqueductus cochleae, cochlear aqueduct. ... (05 Mar 2000) ...

ductus pharyngobranchialis III
A narrow communication between the third branchial pouch and the pharynx in the embryo. ... (05 Mar 2000) ...

ductus pharyngobranchialis IV
A narrow communication between the fourth branchial pouch and the pharynx in the embryo. ... (05 Mar 2000) ...

ductus prostatici
Synonym for prostatic ductules ... About 20 minute canals that receive the prostatic secretion from the glandular tubules and discharge it through openings on either side of the urethral crest in the posterior wall of the urethra. ... Synonym: ductuli prostatici, ductus prostatici, prostatic ducts. ... (05 Mar 2000) ...

ductus reuniens
Synonym for uniting duct ... A short membranous tube passing from the lower end of the saccule to the cochlear duct of the membranous labyrinth. ... Synonym: ductus reuniens, canaliculus reuniens, canalis reuniens, Hensen's canal, Hensen's duct, uniting canal. ... (05 Mar 2000) ...

ductus semicirculares
Synonym for semicircular ducts ... semicircular canal ...

ductus sublinguales minores
Synonym for minor sublingual ducts ... From 8 to 20 small ducts of the sublingual salivary gland that open into the mouth on the surface of the sublingual fold; a few join the submandibular ducts. ... Synonym: ductus sublinguales minores, Rivinus' ducts, Walther's canals, Walther's ducts. ... (05 Mar 2000) ...

ductus sublingualis major
Synonym for major sublingual duct ... The duct that drains the anterior portion of the sublingual gland; it opens at the sublingual papilla. ... Synonym: ductus sublingualis major, Bartholin's duct. ... (05 Mar 2000) ...

ductus submandibularis
Synonym for submandibular duct ... The duct of the submandibular salivary gland; it opens at the sublingual papilla near the frenulum of the tongue. ... Synonym: ductus submandibularis, ductus submaxillaris, submaxillary duct, Wharton's duct. ... (05 Mar 2000) ...

ductus submaxillaris
Synonym for submandibular duct ... The duct of the submandibular salivary gland; it opens at the sublingual papilla near the frenulum of the tongue. ... Synonym: ductus submandibularis, ductus submaxillaris, submaxillary duct, Wharton's duct. ... (05 Mar 2000) ...

ductus sudoriferus
Synonym for duct of sweat glands ... The superficial portion of the sweat gland that passes through the corium and epidermis, opening on the surface by the porus sudoriferus or sweat pore. ... Synonym: ductus sudoriferus, sudoriferous duct, sweat duct. ... (05 Mar 2000) ...

ductus thoracicus
Synonym for thoracic duct ... <anatomy> The major efferent lymph duct into which lymph from most of the peripheral lymph nodes drains. ... Recirculating lymphocytes that have left the circulation in the lymph node return to the blood through the thoracic duct. ... (18 Nov 1997) ...

ductus thoracicus dexter
Synonym for right lymphatic duct ... One of the two terminal lymph vessels, a short trunk, about 2 cm in length, formed by the union of the right jugular lymphatic vessel and vessels from the lymph nodes of the right superior limb, thoracic wall, and both lungs; it lies on the right side of the root of the neck and empties into the right brachioceph …

ductus thyroglossus
Synonym for thyroglossal duct ... A transitory endodermal tube in the embryo, carrying thyroid-forming tissue at its caudal end; normally, the duct disappears after the thyroid has moved to its definitive location in the neck; its point of origin is regularly marked on the root of the adult tongue by the foramen caecum; occasionally, its incomplete …

ductus utriculosaccularis
Synonym for utriculosaccular duct ... A duct that connects the inner aspect of the utricle with the endolymphatic duct a short distance from its origin from the saccule. ... Synonym: ductus utriculosaccularis, Bottcher's canal. ... (05 Mar 2000) ...

ductus venosus
In the foetus, continuation of the left umbilical vein through the liver to the vena cava inferior; after birth, its lumen becomes obliterated, forming the ligamentum venosum. ... Ductus venosus arantii, rarely used term for ductus venosus. ... (05 Mar 2000) ...

Duddell, Benedict
<person> 18th century British oculist. ... See: Duddell's membrane. ... (05 Mar 2000) ...

Duddell's membrane
Synonym for posterior limiting layer of cornea ... A transparent homogeneous acellular layer between the substantia propria and the endothelial layer of the cornea; considered to be a highly developed basement membrane. ... Synonym: lamina limitans posterior corneae, membrana vitrea, Descemet's membrane, Duddell's membrane, entocornea, hyaloid membra …

due date
The estimated calendar date when a baby will be born, the date the baby is due to be born. It is also called the estimated date of confinement (EDC). ... (12 Dec 1998) ...

duenna
Origin: Sp. Duena, dona, fr. L. Domina. See Dame. ... 1. The chief lady in waiting on the queen of Spain. ... 2. An elderly lady holding a station between a governess and companion, and appointed to have charge over the younger ladies in a Spanish or a Portuguese family. ... 3. Any old woman who is employed to guard a younger one; a governess. ... Sour …

duff
<botany> The matted, partly decomposed, organic surface layer of forested soils. ... (09 Oct 1997) ...

Duffy
Blood group system. Single gene locus. ... (18 Nov 1997) ...

duffy blood-group system
A blood group consisting mainly of the antigens fy(a) and fy(b), determined by allelic genes, the frequency of which varies profoundly in different races; amorphic genes are common. ... (12 Dec 1998) ...

Dugas, Louis
<person> U.S. Physician, 1806-1884. ... See: Dugas' test. ... (05 Mar 2000) ...

Dugas' test
In the case of an injured shoulder, if the elbow cannot be made to touch the chest while the hand rests on the opposite shoulder, the injury is a dislocation and not a fracture of the humerus. ... (05 Mar 2000) ...

Duhring, Louis
<person> U.S. Dermatologist, 1845-1913. ... See: Duhring's disease. ... (05 Mar 2000) ...

Duhring's disease
<disease> A chronic disease of the skin characterised by severe itching, extensive eruption of vesicles (blisters) and papules which occur in groups. May be associated with an occult malignancy in the elderly patient. ... Treatment includes sulpha-based antibiotics. In some cases this condition may be associated with malabsorption. Relapses ar …

Duhrssen, Alfred
<person> German obstetrician-gynecologist, 1862-1933. ... See: Duhrssen's incisions. ... (05 Mar 2000) ...

Duhrssen's incisions
Three surgical incision's of an incompletely dilated cervix, corresponding roughly to 2, 6, and 10 o'clock, used as a means of effecting immediate delivery of the foetus. ... (05 Mar 2000) ...

duke
1. A leader; a chief; a prince. 'Hannibal, duke of Carthage.' (Sir T. Elyot) 'All were dukes once, who were 'duces' captains or leaders of their people.' (Trench) ... 2. In England, one of the highest order of nobility after princes and princesses of the royal blood and the four archbishops of England and Ireland. ... 3. In some European countries, a …

Duke bleeding time test
A bleeding time test in which an incision is made in the earlobe and the time until bleeding stops is measured. ... (05 Mar 2000) ...

Duke, William
<person> U.S. Pathologist, 1883-1945. ... See: Duke bleeding time test. ... (05 Mar 2000) ...

Dukes, Clement
<person> English physician, 1845-1925. ... See: Dukes' disease, Filatov Dukes' disease. ... (05 Mar 2000) ...

Dukes, Cuthbert
<person> British pathologist, 1890-1977. ... See: Dukes' classification. ... (05 Mar 2000) ...

Dukes' classification
A classification of the extent of operable adenocarcinoma of the colon or rectum commonly modified as follows: A (Duke's A), confined to the mucosa; B1, into the muscularis mucosae; B2, through the muscularis mucosae; C1, limited to the bowel wall, with nodal metastases; C2, through the bowel wall, with nodal metastases. ... (05 Mar 2000) ...

Dukes' disease
An exanthem-producing infectious disease of childhood; unknown aetiology. ... (05 Mar 2000) ...

dulcin
P-Phenetol carbamide; 4-ethoxyphenylurea;has been used as a substitute for sugar, being 200 times as sweet as cane sugar. Because of hydrolysis to aminophenol, it may produce an injurious effect when used over long periods of time. ... (05 Mar 2000) ...

dull
1. Slow of understanding; wanting readiness of apprehension; stupid; doltish; blockish. 'Dull at classical learning.' 'She is not bred so dull but she can learn.' (Shak) ... 2. Slow in action; sluggish; unready; awkward. 'This people's heart is waxed gross, and their ears are dull of hearing.' (Matt. Xiii. 15) 'O, help my weak wit and sharpen my dul …

dullness
Dulness ... The character of the sound obtained by percussing over a solid part incapable of resonating; usually applied to an area containing less air than those which can resonate. ... (05 Mar 2000) ...

Dulong-Petit law
The specific heats of many solid elements are inversely proportional to their atomic weights. ... (05 Mar 2000) ...

Dulong, Pierre
<person> French chemist, 1785-1838. ... See: Dulong-Petit law. ... (05 Mar 2000) ...

dulse
<botany> A seaweed of a reddish brown colour, which is sometimes eaten, as in Scotland. The true dulse is Sarcophyllis edulis; the common is Rhodymenia. ... Alternative forms: dillisk] 'The crimson leaf of the dulse is seen To blush like a banner bathed in slaughter.' (Percival) ... Origin: Cf. Gael. Duileasg; duille leaf + uisge water. Cf. Whi …

dumas
Synonym for foot yaws ... <dermatology> Yaws of the feet with keratoderma of the palms and soles and ulcer formation. ... Synonym: crab yaws, dumas, tubba, tubbae. ... (05 Mar 2000) ...