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

perianal reflex
anal reflex.

perianesthesia
(per″e-an″es-the´zhә) the time from just before anesthesia is administered through the postanesthesia period.

perianesthesia nurse
a nurse who cares for patients during the period before and after anesthesia; see also postanesthesia nurse.

periangiitis
(per″e-an″je-i´tis) perivasculitis.

periangiocholitis
(per″e-an″je-o-ko-li´tis) pericholangitis.

periaortitis
(per″e-a″or-ti´tis) inflammation of tissues around the aorta.

periapical
(per″e-ap´ĭ-kәl) surrounding the apex of the root of a tooth.

periapical abscess
inflammation with pus in the tissues surrounding the apex of a tooth.

periapical cyst
a periodontal cyst involving the apex of an erupted tooth.

periapical granuloma
a round, slowly expanding granulomatous lesion next to the root apex of a tooth, usually a complication of pulpitis. It consists of a proliferating mass of chronic inflammatory tissue within a fibrous capsule that is an extension of the periodontal ligament. Called also apical granuloma and dental granuloma.

periappendicitis
(per″e-ә-pen″dĭ-si´tis) inflammation of the vermiform appendix and surrounding tissues.

periarterial
(per″e-ahr-tēr´e-әl) around an artery.

periarteritis
(per″e-ahr″tә-ri´tis) inflammation of the outer coat of an artery and of the tissues surrounding it. periarteritis gummosa accumulation of gummas on the blood vessels in syphilis. periarteritis nodosa polyarteritis nodosa.

periarthritis
(per″e-ahr-thri´tis) inflammation of the tissues around a joint.

periarticular
(per″e-ahr-tik´u-lәr) around a joint; called also juxta-articular.

periarticular fracture
a fracture extending close to, but not into, a joint.

periaxial
(per″e-ak´se-әl) around an axis.

periaxillary
(per″e-ak´sĭ-lar″e) around the axilla.

peribronchial
(per″e-brong´ke-әl) around a bronchus or bronchi.

peribronchiolar
(per″e-brong-ki´o-lәr) around the bronchioles.

peribronchiolitis
(per″e-brong″ke-o-li´tis) inflammation of the tissues around the bronchioles.

peribronchitis
(per″e-brong-ki´tis) a form of bronchitis consisting of inflammation and thickening of the tissues around the bronchi.

pericaliceal
(per″e-kal″ĭ-se´әl) near or around a renal calyx; also spelled pericalyceal.

pericallosal
(per″e-kә-lo´sәl) situated around the corpus callosum.

pericallosal artery
origin, anterior cerebral artery, distal to the origin of the callosomarginal artery; branches, precuneal and parietooccipital branches; distribution, runs along corpus callosum, supplying cerebral cortex.

pericalyceal
(per″e-kal″ĭ-se´әl) pericaliceal.

pericapillary cell
pericyte.

pericardiac
(per″e-kahr´de-ak) pericardial.

pericardiacophrenic artery
origin, internal thoracic artery; branches, none; distribution, pericardium, diaphragm, pleura.

pericardiacophrenic veins
small veins that drain blood from the pericardium and diaphragm into the left brachiocephalic vein.

pericardial
(per″e-kahr´de-әl) pertaining to the pericardium. surrounding the heart.

pericardial cavity
the potential space between the epicardium and the parietal layer of the serous pericardium.

pericardial veins
numerous small veins that drain blood from the pericardium into the brachiocephalic, inferior thyroid, and azygos veins, and the superior vena cava.

pericardiectomy
(per″e-kahr″de-ek´tә-me) surgical removal of all or part of the pericardium.

pericardiocentesis
(per″e-kahr″de-o-sen-te´sis) surgical puncture into the pericardial space and aspiration of fluid for therapeutic or diagnostic purposes. Therapeutically, the procedure is used as an emergency measure to relieve life-threatening cardiac tamponade. Other clinical situations in which it may be done inclu...

pericardiolysis
(per″e-kahr″de-ol´ĭ-sis) the operative freeing of adhesions between the visceral and parietal pericardium.

pericardiophrenic
(per″e-kahr″de-o-fren´ik) pertaining to the pericardium and diaphragm.

pericardiopleural
(per″e-kahr″de-o-ploor´әl) pertaining to the pericardium and pleura.

pericardiorrhaphy
(per″e-kahr″de-or´ә-fe) suture of the pericardium.

pericardiostomy
(per″e-kahr″de-os´tә-me) creation of an opening into the pericardium, usually for drainage of effusions.

pericardiotomy
(per″e-kahr″de-ot´ә-me) incision of pericardium.

pericarditis
(per″e-kahr-di´tis) inflammation of the pericardium. It may be chronic or acute; acute pericarditis is usually secondary to some other bacterial infection, such as osteomyelitis, lung abscess, or pneumonia. It may also occur without bacterial infection, resulting from a tumor, chest wound, surgery, or any of various hea...

pericarditis carcinomatosa
(per″e-kahr-di´tis kahr″sĭ-no″mә-to´sә) carcinomatous pericarditis.

pericarditis obliterans
(per″e-kahr-di´tis ob-lit´әr-anz) adhesive pericarditis that causes obliteration of the pericardial cavity.

pericarditis sicca
(per″e-kahr-di´tis sik´ә) an acute type of fibrinous pericarditis that does not have effusion.

pericardium
(per″ĭ-kahr´de-әm) the fibroserous sac enclosing the heart and the roots of the great vessels, composed of external (fibrous) and internal (serous) layers.

pericecal
(per″e-se´kәl) around the cecum.

pericecitis
(per″e-se-si´tis) inflammation of the tissues around the cecum.

pericellular
(per″e-sel´u-lәr) surrounding a cell.

pericholangitis
(per″e-ko″lan-ji´tis) inflammation of tissues surrounding the bile ducts; called also periangiocholitis.

pericholecystitis
(per″e-ko″lә-sis-ti´tis) inflammation of tissues around the gallbladder.

perichondritis
(per″e-kon-dri´tis) inflammation of the perichondrium.

perichondrium
(per″ĭ-kon´dre-әm) the layer of fibrous connective tissue investing all cartilage except the articular cartilage of synovial joints. adj., perichon´dral., adj.

perichordal
(per″e-kor´dәl) surrounding the notochord.

perichoroidal
(per″e-kor-oi´dәl) surrounding the choroid coat of the eye.

pericolic
(per″e-kol´ik) around the colon.

pericolitis
(per″e-ko-li´tis) inflammation around the colon, especially of its peritoneal coat.

pericolonitis
(per″e-ko″lәn-i´tis) pericolitis.

pericolpitis
(per″e-kol-pi´tis) perivaginitis.

periconceptional
(per″e-kәn-sep´shәn-әl) around the time of conception.

periconchal
(per″e-kong´kәl) around a concha.

pericorneal
(per″e-kor´ne-әl) around the cornea.

pericoronal
(per″e-kor´ә-nәl) around the crown of a tooth.

pericranitis
(per″e-kra-ni´tis) inflammation of the pericranium.

pericranium
(per″e-kra´ne-әm) the periosteum of the skull. adj., pericra´nial., adj.

pericystitis
(per″e-sis-ti´tis) inflammation of tissues about the bladder.

pericyte
(per´e-sīt) one of the peculiar elongated, contractile cells found wrapped about precapillary arterioles outside the basement membrane. Pericyte, its processes wrapped around the capillary epithelium.

pericytial
(per″e-si´te-әl) around a cell.

periderm
(per´ĭ-durm″) the outer layer of the bilaminar fetal epidermis; it generally disappears before birth. Called also epitrichium.

peridesmitis
(per″e-dez-mi´tis) inflammation of the peridesmium.

peridesmium
(per″e-dez´me-әm) the areolar membrane that covers the ligaments.

peridiverticulitis
(per″e-di″vәr-tik″u-li´tis) inflammation around an intestinal diverticulum.

periductal
(per″e-duk´tәl) around a duct.

periductal mastitis
inflammation of tissues around the ducts of the mammary gland.

periduodenitis
(per″e-doo″o-dә-ni´tis) inflammation around the duodenum.

periencephalitis
(per″e-en-sef″ә-li´tis) inflammation of the surface of the brain.

perienteritis
(per″e-en″tәr-i´tis) inflammation of the peritoneal coat of the intestines.

periesophagitis
(per″e-ә-sof´ә-ji´tis) inflammation of the tissues around the esophagus.

perifistular
(per″e-fis´tu-lәr) around a fistula.

perifollicular
(per″e-fә-lik´u-lәr) surrounding a follicle.

perifollicular fibroma
a type of small, flesh-colored, papular, follicular adnexal tumor on the head or neck, sometimes found in groups.

perifolliculitis
(per″e-fә-lik″u-li´tis) inflammation around the hair follicles.

perigangliitis
(per″e-gang″gle-i´tis) inflammation around a ganglion.

perigastric
(per″e-gas´trik) around the stomach; pertaining to the peritoneal coat of the stomach.

perigastritis
(per″e-gas-tri´tis) inflammation of the peritoneal coat of the stomach.

periglomerular cells
nerve cells in the olfactory bulb that have synaptic connections with glomeruli, mitral cells, and tufted cells, and are thought to act as dampers.

perigraft
(per´e-graft) situated or occurring around a graft.

perihepatic
(per″e-hә-pat´ik) around the liver.

perihepatitis
(per″e-hep″ә-ti´tis) inflammation of the peritoneal coat of the liver and the surrounding tissue.

periinfarction block
disturbance of intraventricular conduction after a myocardial infarction, due to delayed conduction in the infarct region.

perijejunitis
(per″e-jĕ″joo-ni´tis) inflammation around the jejunum.

perikaryon
(per″e-kar´e-on) the cell body of a neuron; called also neurosome.

perikymata
(per″e-ki´mә-tә) the numerous small transverse ridges on the surface of the enamel of permanent teeth, representing overlapping prism groups; continued abrasion erodes the enamel surface and obliterates them.

perilabyrinthitis
(per″e-lab″ә-rin-thi´tis) circumscribed labyrinthitis.

perilesional
(per″e-le´zhәn-әl) located or occurring around a lesion.

perilymph
(per´e-limf) the fluid contained within the space separating the membranous labyrinth from the osseous labyrinth; it is entirely separate from the endolymph.

perilymph fistula
rupture of the round window with leakage of perilymph into the inner ear, so that changes in middle ear pressure directly affect the inner ear, causing sensorineural hearing loss as well as dizziness, vertigo, nausea, and vomiting. Head trauma and dramatic changes in atmospheric pressure are the most common causes. The usual tr...

perilymphangitis
(per″e-lim″fan-ji´tis) inflammation around a lymphatic vessel.

perilymphatic duct
cochlear aqueduct.

perilymphatic space
the fluid-filled space separating the membranous and bony labyrinths.