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Summary page of the EQA programme
This page provides the information about the programme in a nutshell. It is as concise as it can be.
The programme is focused on external quality assessment of the PD-L1 staining of 4 carcinoma types (subschemes TNBC, NSCLC, UC and HNSCC).
Complete description you can find in the EQA Plan 2022 (namely page 32).
Short description is available in the PDL1 2022 flyer.
European Society of Pathology Quality Assurance Foundation
Barastraat 6, 1070 Brussels, Belgium
www.esp-pathology.org
| SEKK s.r.o., EHK Division Arnošta z Pardubic 2605, 530 02 Pardubice, Czech Republic www.sekk.cz |
The laboratories from all countries are welcome to participate in PDL1 programme.
Very simple guide on how to order the Programmed Death Ligand 1 (PDL1) programme is available here.
The participants are free to order aby combination of the carcinoma types (subschemes).
Each participant examines 1 physical slide and 1 virtual slide for each carcinoma type they ordered.
The table shows complete collection of the samples:
| Set (subscheme) | Samples in the set | |
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| Physical slide unstained | Virtual slide stained | |
| 1: TNBC | 
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| 2: NSCLC | 
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| 3: UC | 
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| 4: HNSCC | 
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Each slide bears one TMA section.
The columns (A to H) represent individual primary samples (carcinomas) different for each set (thus column A in TNBC slide is a tissue different from the column A in other slides).
There are 3 cores of each primary sample in the physical slide TMA (rows 1 to 3).
Blackened cores (● ●) represent tonsillars tissue (serve as block orientation element and staining quality indicator).
We believe that these examples will give you a good insight.
| Public part of the evaluation (EQA round PDL11/22) | Private part of the evaluation (anonymised and shortened examples from EQA round PDL11/22) | ||||
 Final report |  Summary statistics |  Confirmation of attendance |  Certificate of approval
|  Result sheet
|  Histograms
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To view the latest finished EQA round (PDL11/22) please click here.
Last update: 1.7.2022