amiloidosis

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definción

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6 Terms

1

definción

enfermedad caracterizada por deposito de sustancia amorfa amiloide en espacios EC de diversos organos y tejidos, condicionando alteraciones funcionales y estructurales segun la localizacion e intensidad del deposito.

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2

epidemiología

primaria 75% secundaria 5% familiar <5% generalmente mayor 40 años (64 promedio) sexo: masculino incidencia : 8 millones de habitantes por año se dx con esto

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3

Fisiopatología

  1. Existencia de alteraciones en la concentracion y o estructura primaria del precursor plasmático de fibrillas amiloides

  2. Alteraciones en degradacion/ metabolismo del precursor de proteina fibrilar amiloide a. Factor favorecedor de amiloidosis (FVA) b. Factor degradante de amiloide (FDA)

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4

Clínica

piel cerea macroglosia insuficiencia cardiaca hepatomegalia cuagulopatias sx nefrotico neuropatia diabetica

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5

Nefropatia amiloidal

debuta con sx nefrotico (albuminuria y edema de dificil manejo) LRA por afectacion a tubulos intersticiales Diabetes insipida: infiltracion en tubulo colector

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6

a que se asocia?

sindrome de fanconi toxicidad por cadenas acidosis tubular tipo 1 GNRP

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