DrVirgo
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What type of Casts are found in:
1. Acute Tubular Necrosis?
2. Allergic Interstitial Nephritis?
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| cirus
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ATN: Hyalne casts (muddy brown)
AIN: Just eosinophils (WBCs casts)
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| new_n_lost
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ATN = Renal tubular Cell Casts
AIN = White Cell Casts.
AIN with Eosinophiluria indicates Allergic Nephritis while Without Eosinophils is Usually NSAID Induced AIN.
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| DrVirgo
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ATN:
Muddy brown/Dirty brown = granular = Hyaline cast = Renal tubular cell casts
(Are they all the same?)
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| DrVirgo
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AIN = ACUTE or ALLERGIC Interstitial Nephritis?
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| new_n_lost
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Interstitial Whether Acute or Allergic or Chronic all have White Cell Casts.
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| DrVirgo
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Does Pyelonephritis also present with WBC Casts?
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| mytime
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PMNs/ Eoisinophils/ basophils/ lymphocyes........... all WBC. Now depending on whatever the origin of problem u get the type of cast in urine.
When kidneys are involved u get casts but when it's lower down u get just cells.
Pyelonephritis gives.....WBC casts....same if were below wud give just WBCs. like GNs give RBC casts.
So in drug induced nephritis Eosinophils...casts or whatever but EOSINOPHILs.
and ATN hyaline casts..... (necrosed vessels and cells.) = Rt cell casts., hence the color.
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| mytime
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And that is essentially what NNL has said too! 
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