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Related Experiment Videos

Cellular focal segmental glomerulosclerosis: Clinical and pathologic features.

M B Stokes1, A M Valeri, G S Markowitz

  • 1Department of Pathology, Columbia University College of Physicians and Surgeons, New York, New York, USA. mbs2101@columbia.edu

Kidney International
|October 6, 2006
PubMed
Summary
This summary is machine-generated.

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The cellular (CELL) variant of focal segmental glomerulosclerosis (FSGS) has intermediate prognoses compared to collapsing (COLL) and glomerular tip lesion (GTL) FSGS. Differentiating these FSGS variants is crucial for accurate patient outcomes.

Area of Science:

  • Nephrology
  • Pathology
  • Renal Medicine

Background:

  • Idiopathic focal segmental glomerulosclerosis (FSGS) presents with five recognized pathologic variants.
  • The prognostic significance of the cellular (CELL) FSGS variant remains undetermined.
  • Accurate classification of FSGS variants is essential for predicting patient outcomes.

Purpose of the Study:

  • To compare the clinical and pathologic characteristics of CELL FSGS with other idiopathic FSGS variants.
  • To determine the prognostic significance of the CELL FSGS variant.
  • To validate the distinction between collapsing (COLL), CELL, and glomerular tip lesion (GTL) FSGS variants.

Main Methods:

  • Retrospective analysis of 225 patients with idiopathic FSGS.
  • Comparison of clinical data and pathologic findings across four FSGS variants: CELL, COLL, GTL, and not otherwise specified (NOS).

Related Experiment Videos

  • Statistical analysis to identify predictors of end-stage renal disease (ESRD) and remission rates.

    • Main Results:

    • CELL, COLL, and GTL FSGS showed more severe nephrotic syndrome and required earlier biopsy than NOS.
    • COLL FSGS presented with the highest renal insufficiency, glomerular damage, tubulo-interstitial disease, and ESRD rates (65.3%).
    • GTL FSGS exhibited the highest remission rate (75.8%) and lowest ESRD rate (5.7%).
    • CELL FSGS demonstrated intermediate remission (44.5%) and ESRD (27.8%) rates, suggesting potential overlap with other variants.

    Conclusions:

    • The CELL FSGS variant has distinct prognostic implications, differing from COLL and GTL variants.
    • Pathologic classification distinguishing COLL, CELL, and GTL FSGS is validated and clinically significant.
    • Adequate tissue sampling is crucial, as CELL variant may encompass unsampled COLL or GTL lesions.