PAS x40 - RCPA

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This tissue has been reprocessedfrom paraffin.Can you identify amesangial cell nucleus,mesangial matrix, capillarylumina, three endothelialcell nuclei, basementmembranes, epithelial cellcytoplasm, epithelial cellfoot processes andBowman’s space? Howthick are the basementmembranes? What are theeffects of reprocessing?
mesangial matrixepithelial cellfoot processesmesangial matrixcapillary lumenmesangial cell nucleusendothelial cell nucleiepithelial cell cytoplasmbasement membranes
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Laboratory handling of renal Bx:•
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Our Medical Laboratory Scientist re
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Tissue for light microscopy:• des
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A paraffin embedded renal biopsy co
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Immunohistochemical stains:Native
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Examination of H&E stains:• on lo
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Medium power examination of H&E sta
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High power examination of H&E stain
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H&E x2This is an H&E stain of a ren
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H&E x10This is a higher power view.
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H&E x10This is renal medulla. Most
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marksglomerulimarks arteriolesmarks
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H&E x40marksglomeruli/Bowman’s ca
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H&E x40marks arteriolesoutlines par
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tubular polevascular pole
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peritubular capllariesarteriolessma
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H&E x2H&E x10This is a biopsy from
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atrophic tubules in anarea of inter
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segmental sclerosisfocal mild incre
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the mesangium is expandedby amorpho
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PAS x10
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Bowman’s capsulemesangiumtubular
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PAS x40Glomerulus sectioned through
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segmental sclerosisfocal hyalinosis
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OVG x40 - interlobulararteryOVG x40
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Masson x40 -normal glomerulusMasson
Page 57 and 58: Masson x40Masson x40variations in s
Page 59 and 60: Masson x40: glomerulus with mesangi
Page 61 and 62: AgMT x40 - small arteryAgMT x40 - g
Page 63 and 64: AgMT x100Can you identify mesangial
Page 65 and 66: This biopsy is from someonewith the
Page 67 and 68: AgMT x100 -variations in staining f
Page 69 and 70: mesangial cell nucleismallsubepithe
Page 71 and 72: AgMT x100:there is fuzzy materialor
Page 73 and 74: Congo red stain showing theapple gr
Page 75 and 76: Examination of immunohistochemical
Page 77 and 78: IF IgG x40Normal kidney -immunofluo
Page 79 and 80: IF fibrin x40Normal kidney -immunof
Page 81 and 82: IF C1q x40Normal kidney -immunofluo
Page 83 and 84: IP IgA x40Normal kidney - immunoper
Page 85 and 86: IP IgG x40Normal kidney - immunoper
Page 87 and 88: IP IgM x40Normal kidney - immunoper
Page 89 and 90: IP C3 x10
Page 91 and 92: IP C1q x40IP C1q x10Normal kidney -
Page 93 and 94: IP kappa x40IP lambda x40Immunopero
Page 95 and 96: IP C4d x40Immunoperoxidase for C4d
Page 97 and 98: IP SV40 x40 biopsy BImmunoperoxidas
Page 99 and 100: Electron microscopy:• a piece of
Page 101 and 102: Toluidine blue x40Toluidine blue x2
Page 103 and 104: Assessment of the glomerulus in ele
Page 105 and 106: This is a low power electron microg
Page 107: This glomerulus is normocellular, w
Page 111 and 112: The Banff Classification of Renal A
Page 113 and 114: Specimen adequacy(a necessary prere
Page 115 and 116: Quantitative criteria for mononucle
Page 117 and 118: Quantitative criteria for arteriola
Page 119 and 120: Quantitative criteria for peritubul
Page 121 and 122: Quantitative criteria for interstit
Page 123 and 124: Quantitative criteria for fibrous i
Page 125 and 126: C4d scoring :% biopsy area(cortex a
Page 127 and 128: 2. Antibody-mediated changes:may co
Page 129 and 130: 4. T-cell-mediated rejection (TCMR)
Page 131 and 132: 6. Other:• changes not considered
Page 133 and 134: References:• Banff 07 Classificat
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PAS x40 - RCPA

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