Copy of `Dorland's Medical Dictionary`

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Dorland's Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 31/12/2010, USA Words: 39128

DSM-IV-TR
a text revision of the DSM-IV published in 2000.

DT
diphtheria and tetanus toxoids, pediatric use; see diphtheria toxoid.

DTaP
diphtheria and tetanus toxoids and pertussis vaccine in which the pertussis vaccine component is in the acellular rather than whole-cell form.

DTaP vaccine
diphtheria and tetanus toxoids and acellular pertussis vaccine; see diphtheria and tetanus toxoids and pertussis vaccine.

DTIC
dacarbazine.

DTP
diphtheria and tetanus toxoids and pertussis vaccine.

DTP sign
[distal tingling on percussion] Tinel sign.

DTP vaccine
diphtheria and tetanus toxoids and pertussis vaccine.

DTPA
pentetic acid (diethylenetriamine pentaacetic acid).

dual chamber pacemaker
an implanted pacemaker having two leads, one in the atrium and one in the ventricle, so that electromechanical synchrony between the chambers can be approximated.

dual chamber pacing
control of the heart rate by means of an artificial pacemaker that paces, senses, or does both in the atria and in the ventricles.

Duane syndrome
(dwān) a hereditary congenital syndrome in which the affected eye shows limitation or absence of abduction, restriction of adduction, retraction of the globe on adduction, narrowing of the palpebral fissure on adduction and widening on abduction, and deficient convergence. It is transmitted as an autosomal do...

Duane test
one using a candle flame and prisms to measure the degree of ocular heterophoria.

DUB
dysfunctional uterine bleeding.

Dubin-Johnson syndrome
(doo´bәn jon´sәn) hyperbilirubinemia II. a chronic idiopathic jaundice, transmitted as an autosomal recessive trait, that affects the excretory function of the liver. The resulting increase in serum conjugated bilirubin is caused by defective transport of conjugated bilirubin into the biliary ...

Dubini chorea
(doo-be´ne) Dubini disease (doo-be´ne) an acute, fatal form due to acute infection of the central nervous system.

Dubois abscess
(du-bwah´) Dubois disease abscess of the thymus in congenital syphilis; called also thymic abscess.

Dubois sign
shortness of the little finger in congenital syphilis.

Dubreuil-Chambardel syndrome
(du-broo-e´-shahm-bahr-del´) dental caries of the incisors, in most instances only the upper ones, usually appearing during adolescence; within a few years the teeth are irreparably damaged. Some authorities do not consider this syndrome a legitimate entity.

Duchenne disease
(du-shen´) spinal muscular atrophy. bulbar paralysis. tabes dorsalis.

Duchenne muscular dystrophy
the most common and severe type of pseudohypertrophic muscular dystrophy; it is chronic and progressive and begins in early childhood. Affected persons have increasing weakness in the pelvic and shoulder girdles, with muscle atrophy, lordosis, and a peculiar swaying gait with the legs kept wide apart. It is transmitted as...

Duchenne paralysis
Erb-Duchenne paralysis. progressive bulbar palsy.

Duchenne sign
the sinking in of the epigastrium on inhalation in paralysis of the diaphragm or in certain cases of hydropericardium.

Duchenne syndrome
(du-shen´) progressive bulbar palsy.

Duchenne-Aran disease
(du-shen´ ar-ahn´) Duchenne-Aran muscular atrophy spinal muscular atrophy.

Duchenne-Erb paralysis
Duchenne-Erb syndrome (du-shen´ ār´) Erb-Duchenne paralysis.

Duchenne-Griesinger disease
(du-shen´ gre´sing-er) Duchenne muscular dystrophy.

duck fever
a type of hypersensitivity pneumonitis caused by sensitivity to duck proteins in duck feathers.

duct
(dukt) a passage with well-defined walls, especially a tubular structure for the passage of excretions or secretions. adj., ductal, adj. .

duct carcinoma
ductal carcinoma carcinoma of a duct, such as of the pancreas or breast; see also ductal carcinoma in situ.

duct of Bartholin
(bahr´to-lin) Bartholin duct.

duct of epididymis
the single tube into which the coiled ends of the efferent ductules of the testis open; its convolutions make up most of the epididymis.

duct of Müller
(me´ler) paramesonephric duct.

duct of Santorini
(sahn″to-re´ne) accessory pancreatic duct.

duct of Wirsung
(vēr´soong) pancreatic duct.

ductal carcinoma in situ
(DCIS) the most common type of breast cancer, consisting of tumors of the lactiferous ducts that have not yet spread.

ductile
(duk´til) susceptible of being drawn out without breaking.

duction
(duk´shәn) in ophthalmology, the rotation of an eye around its horizontal, vertical, or anteroposterior (front to back) axis.

ductless
(dukt´lәs) having no excretory duct.

ductless gland
one without a duct, of internal secretion; see endocrine glands.

ductopenia
(duk″to-pe´nia) deficiency in the number of ducts, particularly bile ducts; it may be focal or generalized.

ducts of Cuvier
(ku-vya´) common cardinal veins.

ducts of prostate gland
prostatic ducts.

ducts of Rivinus
(rĭ-ve´nәs) the small sublingual ducts which open into the mouth on the sublingual fold.

ductule
(duk´tūl) a minute duct.

ductules of prostate
prostatic ducts.

ductulus
(duk´tu-lәs) pl. duc´tuli Latin word meaning ductule, or little duct.

ductus
(duk´tәs) pl. duc´tus Latin word meaning duct.

ductus arteriosus
(duk´tәs ahr-tēr″e-o´sәs) a blood vessel that joins the aorta and pulmonary artery in the fetus. See also patent ductus arteriosus. patent ductus arteriosus abnormal persistence after birth of an open lumen in the ductus arteriosus, connecting the aorta and the pulm...

ductus deferens
(duk´tәs def´ә-renz) the excretory duct of the testis, which joins the excretory duct of the seminal vesicle to form the ejaculatory duct; called also vas deferens.

ductus venosus
(duk´tәs ve-no´sәs) a major blood channel that develops through the embryonic liver from the left umbilical vein to the inferior vena cava.

Dugas sign
Dugas test (for diagnosis of dislocation of the shoulder) place the hand of the affected side on the opposite shoulder and bring the elbow to the side of the chest; if this cannot be accomplished, dislocation of the shoulder exists.

Duhamel operation
the treatment of Hirschsprung disease by a modification of the pull-through operation and establishment of a longitudinal anastomosis between the proximal ganglionated segment of colon and the rectum, leaving the rectum in situ.

Duhring disease
(doo´ring) dermatitis herpetiformis.

Duke test
a type of bleeding time test in which the incision is made in the earlobe.

Dukes classification
(dldbomacks) a system of staging colorectal tumors based on evaluation of the depth of invasion of the carcinoma and the presence or absence of metastasis. The four stages are: A, confined to the mucosa and submucosa; B, invasion through the muscularis without lymph node involvement; C, invasion through the muscularis w...

Dukes disease
(dldbomacks) a condition now considered to be a mild form of scarlet fever; called also fourth disease.

dull
(dul) not resonant; used to describe sounds heard during percussion.

dullness
(dul´nis) a quality of sound elicited by percussion, being short and high-pitched with little resonance.

dumbbell tumor
hourglass tumor.

Dumdum fever
visceral leishmaniasis.

dumping syndrome
(dump´ing) a syndrome of nausea, weakness, sweating, palpitation, fainting, often a sensation of warmth, and sometimes diarrhea, occurring after ingestion of food in patients who have had partial gastrectomy; symptoms are often worse after eating or drinking highly concentrated and refined carbohydrate foods. Called als...

Duncan position
the position of the placenta with its margin presenting at the os for delivery.

Duncan syndrome
(dung´kәn) X-linked lymphoproliferative syndrome.

duodenal
(doo″o-de´nәl) (doo-od´ә-nәl) of or pertaining to the duodenum.

duodenal cap
the part of the duodenum adjacent to the pylorus, forming the superior flexure.

duodenal glands
Brunner glands.

duodenal papilla
either of the small elevations (major and minor) on the mucosa of the duodenum; the major one is the entrance of the conjoined pancreatic duct and common bile duct, and the minor one is the entrance of the accessory pancreatic duct.

duodenal ulcer
one in the duodenum, one of the two most common types of peptic ulcer.

duodenectomy
(doo″o-dә-nek´tә-me) excision of the duodenum, total or partial.

duodenitis
(doo-od″ә-ni´tis) inflammation of the duodenum.

duodenocholedochotomy
(doo″o-de″no-ko-led″ә-kot´ә-me) incision of the duodenum and common bile duct.

duodenoenterostomy
(doo″o-de″no-en″tәr-os´tә-me) anastomosis of the duodenum to some other part of the small intestine.

duodenogastric
(doo″o-de´no-gas´trik) going from the duodenum to the stomach.

duodenogastric reflux
reflux of the contents of the duodenum into the stomach; it may occur normally, especially during fasting.

duodenogram
(doo″o-de´no-gram) a radiograph of the duodenum.

duodenography
(doo″o-dә-nog´rә-fe) radiography of the duodenum.

duodenohepatic
(doo″o-de″no-hә-pat´ik) pertaining to the duodenum and liver.

duodenoileostomy
(doo″o-de″no-il″e-os´tә-me) anastomosis of the duodenum to the ileum.

duodenojejunal
(doo″o-de″no-jә-joo´nәl) pertaining to the duodenum and the jejunum.

duodenojejunal flexure
the bend at the junction of the duodenum and jejunum.

duodenojejunal fossa
either of two peritoneal pockets, one behind the inferior and the other behind the superior duodenal fold.

duodenojejunal hernia
Treitz hernia.

duodenojejunostomy
(doo″o-de″no-jĕ″joo-nos´tә-me) anastomosis of the duodenum to the jejunum.

duodenorrhaphy
(doo″o-dә-nor´ә-fe) suture of the duodenum.

duodenoscope
(doo″o-de´no-skōp) a type of enteroscope for examining the duodenum.

duodenoscopy
(doo″o-dә-nos´kә-pe) enteroscopy of the duodenum.

duodenostomy
(doo″o-dә-nos´tә-me) surgical formation of a permanent opening into the duodenum.

duodenotomy
(doo″o-dә-not´ә-me) incision of the duodenum.

duodenum
(doo″o-de´nәm) (doo-od´ә-nәm) the first or proximal portion of the small intestine, about 25 cm (10 inches) long; at its upper end is the pyloric opening connecting it to the stomach, and at its lower end it continues into the jejunum. It plays an important role in digestion of food be...

duplex kidney
one that has two separate collecting systems; there may be a duplex ureter or a single ureter.

duplex ultrasonography
a type that combines real-time with Doppler ultrasonography.

duplex ureter
existence of a second ureter on one side; it may be a complete connection from the kidney to the bladder or a partial tube forming a blind pouch. Most are asymptomatic.

duplex uterus
uterus didelphys.

duplication
(doo″plĭ-ka´shәn) the act or process of doubling, or the state of being doubled. in genetics, the presence in the genome of additional genetic material (a chromosome or segment of one, a gene or part of one). See also repeat. the process of copying a radiograph. ...

duplication cataract
a disk-shaped cortical opacity forming in layers under capsular cataracts with clear zones between the layers.

duplication cyst
a congenital cystic malformation of the alimentary tract, consisting of a duplication of the segment to which it is adjacent, occurring anywhere from the mouth to the anus but most frequently affecting the ileum and esophagus.

Dupuy-Dutemps operation
(du-pwe´-du-tah´) blepharoplasty of the lower lid with tissue from the upper lid.

Dupuytren amputation
Dupuytren operation amputation of the upper limb at the shoulder joint.

Dupuytren contraction
Dupuytren contracture.