Cilindrii Flashcards

1
Q

Ce sunt cilindrii?

A

elemente ale sedimentului urinar formate prin polimerizarea proteinei Tamm-Horsfall

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2
Q

Unde se formeaza cilindrii?

A

Dupa ansa Henle, in ultima parte a tb distal si portiunea initiala a tb colector

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3
Q

Factorii care favorizeaza aparitia cilindrilor

A

albuminuria, staza urinara, prezenta resturilor celulare, scaderea FG, ph acid, prezenta anumitor proteine (Bence-Jones)

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4
Q

Cilindrii hialini

A
  • matrice hialina
  • 5-7/min la pers normale
  • patologic in glomerulonefrite acute, nefroangioscleroza
  • incolori, translucizi, drepti/incurbati, dimensiuni scazute
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5
Q

Cilindrii cerosi

A
  • matrice ceroasa
  • scurti si grosi, suprafata lucioasa si galbuie
  • apar in conditii de staza urinara prelungita, IRC avansata sau amiloidoza renala
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6
Q

Cilindrii grasosi

A
  • matrice hialina cu picaturi de grasime
  • in sindromul nefrotic -> lipurie
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7
Q

Cilindrii granulosi

A
  • opaci, galbui-cenusii, granulatii mici, regulate si refrigentepe suprafata
  • multitudine de granule provenite din citoplasma celulelor tubulare
  • in toate bolile renale care evolueaza cu proteinurie
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8
Q

Cilindrii hematici

A
  • hematii +- alterate
  • glomerulonefrite
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9
Q

Cilindrii leucocitari

A
  • afectare inflamatorie sau infectioasa
  • tubulointerstitiala - pielonefrita
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10
Q

Cilindrii epiteliali

A
  • celule tubulare renale aflate in diferite faze de degradare
  • in nefropatii tubulare, in faza de reluare a diurezei din IRA sau in sindroamele nefrotice
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