Agenesis
Lack of development of something. For example, agenesis of a toe means that toe failed to form.
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Absence or failure of formation of any part. [G. a- priv. + genesis, production]
- gonadal a. absence of one or both gonads.
- müllerian a. SYN: Mayer-Rokitansky-Küster-Hauser syndrome.
- renal a. absence of one or both kidneys, most commonly unilateral with absence of the ipsilateral paramesonephric duct and its derivatives; renal function is normal as long as the remaining kidney is intact; bilateral or complete renal a. is associated with Potter facies and neonatal death.
- thymic a. absence of the thymus, which may be associated with parathyroid a. in DiGeorge syndrome.

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agen·e·sis (')ā-'jen-ə-səs n, pl -e·ses -.sēz lack or failure of development (as of a body part)

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n.
absence of an organ, usually due to total failure of its development in the embryo.

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agen·e·sis (a-jenґə-sis) [a-1 + -genesis] absence of an organ, usually referring to such absence resulting from failure of appearance of its primordium in embryonic development. Cf. aplasia.

Medical dictionary. 2011.

Look at other dictionaries:

  • agénesis — f. patol. Agenesia. Medical Dictionary. 2011 …   Diccionario médico

  • Agenesis — A*gen e*sis, n. [Gr. a priv. + ? birth.] (Physiol.) Any imperfect development of the body, or any anomaly of organization. [1913 Webster] || …   The Collaborative International Dictionary of English

  • agenesis — [ā jen′ə sis] n. [ A 2 + GENESIS] congenital absence of an organ or other part of the body …   English World dictionary

  • agenesis — agenetic /ay jeuh net ik/, adj. /ay jen euh sis/, n. Pathol. 1. absence of or failed development of a body part. 2. sterility; impotence; barrenness. Also, agenesia /ay jeuh nee zheuh, zhee euh see euh/. [1850 55; < NL; see A 6, GENESIS] * * *… …   Universalium

  • Agenesis — In medicine, agenesis refers to the failure of an organ to develop during embryonic growth and development. Many forms of agenesis are referred to by individual names, depending on the organ affected:*Agenesis of the corpus callosum failure of… …   Wikipedia

  • Agenesis — Der Begriff Agenesie (Synonyme: Agenesia, Agenesis) wird in der Medizin und Veterinärmedizin verwendet, um das vollständige Fehlen eines Organs aufgrund einer (genetisch bedingten) Nichtanlage zu beschreiben. Damit handelt es sich um eine Form… …   Deutsch Wikipedia

  • Agenesis — nesusiformavimas statusas T sritis gyvūnų raida, augimas, ontogenezė, embriologija atitikmenys: lot. Agenesis ryšiai: platesnis terminas – augimo nenormalumai sinonimas – agenezė …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • Agenesis — nesusiformavimas statusas T sritis gyvūnų raida, augimas, ontogenezė, embriologija atitikmenys: lot. Agenesis ryšiai: platesnis terminas – nepakankamumas sinonimas – agenezė …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • Agenesis — nesusiformavimas statusas T sritis gyvūnų raida, augimas, ontogenezė, embriologija atitikmenys: lot. Agenesis ryšiai: platesnis terminas – per lėtas augimas sinonimas – agenezė …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • Agenesis — neišsivystymas statusas T sritis embriologija pavyzdys( iai) ruoniagalūnỹstė atitikmenys: lot. Agenesis ryšiai: platesnis terminas – augimo nenormalumai sinonimas – agenezė …   Medicininės histologijos ir embriologijos vardynas

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