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Kidney non-tumor

Tubular and interstitial diseases

Acute allergic tubulointerstitial nephritis


Reviewers: Nikhil Sangle, M.D. (see Reviewers page)
Revised: 23 December 2012, last major update August 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
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● Drug reaction to beta lactam antibiotics, non-steroidal anti-inflammatory drugs, diuretics, other drugs; generally after 23 weeks after exposure
● May occur in renal allografts (Clin Nephrol 2009;72:331)
● Fever, hematuria, azotemia and eosinophilia
● Variable skin rash
● May be associated with inactive cytochrome P450 polymorphisms (Ren Fail 2009;31:749)
● Urinalysis: suggestive of infection (eosinophils, hematuria, proteinuria, pyuria), but culture negative

Micro description
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● Generalized interstitial edema and infiltration by lymphocytes, plasma cells, macrophages and eosinophils
● Tubular epithelial damage (tubulitis) with luminal white blood cells; variable degree of tubular injury
● Normal glomeruli and vessels

Micro images
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Various images

End of Kidney non-tumor > Tubular and interstitial diseases > Acute allergic tubulointerstitial nephritis

Ref Updated: 8/16/12


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