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==Overview==
==Overview==


==Biopsy==
Obtaining complete history both for the patient and family is an important aspect of diagnosing TBMD. The hallmark of TBMD is benign hematuria. A positive family history of incidental finding of intermittent or persistent hematuria is suggestive of TBMD. TBMD is mostly asymptomatic. Microscopic hematuria is found incidentally. <ref name="pmid15327380">{{cite journal |vauthors=van Paassen P, van Breda Vriesman PJ, van Rie H, Tervaert JW |title=Signs and symptoms of thin basement membrane nephropathy: a prospective regional study on primary glomerular disease-The Limburg Renal Registry |journal=Kidney Int |volume=66 |issue=3 |pages=909–13 |date=September 2004 |pmid=15327380 |doi=10.1111/j.1523-1755.2004.00835.x |url=}}</ref>
A [[needle aspiration biopsy|kidney biopsy]] is the only way to diagnose thin basement membrane disease. It reveals thinning of the [[glomerular basement membrane]] from the normal 300 to 400 nanometers (nm) to 150 to 250&nbsp;nm. However, a [[needle aspiration biopsy|biopsy]] is rarely done in cases where the patient has isolated [[microscopic hematuria]], normal [[kidney function]], and no [[proteinuria]]. The prognosis is excellent in this setting unless the clinical manifestations progress, as occurs in most males and some females with [[Alport syndrome]] and many patients with [[IgA nephropathy]].
 
==History and Symptoms==
 
===History===
 
Obtaining complete medical and family history is an important aspect of diagnosing TBMD. It provides insight to cause and differentiation of TBMD with Alport syndrome, IgA nephropathy, Lupus Nephritis and other glomerulopathies. History may be obtained focusing specific areas including:
*Past medical history including URTI, Autoimmune Disease, Glomerulopathies.
*Positive family history of benign intermittent or persistent hematuria.
*Physical properties of urine (color, turbidity).
*Nature of micturation (frequency, dysuria)
*New onset hypertension or edema.
 
===Symptoms===
 
TBMD is mostly asymptomatic. The following signs are included:
*Intermiitent or persistent hematuria is found incidentally.
*New onset hypertension.
*Proteinuria.
*Renal impairment.
*Renal failure.
 


==References==
==References==

Revision as of 05:36, 16 October 2020

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Obtaining complete history both for the patient and family is an important aspect of diagnosing TBMD. The hallmark of TBMD is benign hematuria. A positive family history of incidental finding of intermittent or persistent hematuria is suggestive of TBMD. TBMD is mostly asymptomatic. Microscopic hematuria is found incidentally. [1]

History and Symptoms

History

Obtaining complete medical and family history is an important aspect of diagnosing TBMD. It provides insight to cause and differentiation of TBMD with Alport syndrome, IgA nephropathy, Lupus Nephritis and other glomerulopathies. History may be obtained focusing specific areas including:

  • Past medical history including URTI, Autoimmune Disease, Glomerulopathies.
  • Positive family history of benign intermittent or persistent hematuria.
  • Physical properties of urine (color, turbidity).
  • Nature of micturation (frequency, dysuria)
  • New onset hypertension or edema.

Symptoms

TBMD is mostly asymptomatic. The following signs are included:

  • Intermiitent or persistent hematuria is found incidentally.
  • New onset hypertension.
  • Proteinuria.
  • Renal impairment.
  • Renal failure.


References

  1. van Paassen P, van Breda Vriesman PJ, van Rie H, Tervaert JW (September 2004). "Signs and symptoms of thin basement membrane nephropathy: a prospective regional study on primary glomerular disease-The Limburg Renal Registry". Kidney Int. 66 (3): 909–13. doi:10.1111/j.1523-1755.2004.00835.x. PMID 15327380.

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