Click on the cases below to test your stain interpretation skills
This interactive tool features CLDN18-stained slides curated by a committee of experts. Explore a gallery of cases with matched whole slide images and sharpen your interpretive pathology skills with a self-guided quiz that compares your answers with those of the experts.
- Explore our stain gallery
- Staining interpretation quiz
Use this virtual microscope to explore a gallery of CLDN18-stained cases.
Use the criteria below to refine the cases and click on the cases below to perform virtual microscopy.
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Test your knowledge on CLDN18 staining interpretation
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What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 5% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 5% moderate-to-strong membranous stain intensity.
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 5% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 5% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 0% moderate-to-strong membranous stain intensity. Tumour cells are completely negative for CLDN18 expression, which is present as moderate-to-strong in nonneoplastic gastric glands.
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 0% moderate-to-strong membranous stain intensity.
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 90% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 90% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 85% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 85% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 30% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 30% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 5% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 5% moderate-to-strong membranous stain intensity
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 0% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 0% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 60% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 60% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 85% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 85% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 100% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 100% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 85% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 85% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 30% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 30% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 70% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 70% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
What is the percentage of tumour cells stained with moderate-to-strong (2+/3+) membranous stain intensity?
Please select any one option before you submit
Correct.
Your response is consistent with the consensus scoring. The consensus score is 65% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation
Incorrect.
Your response is inconsistent with the consensus scoring. The consensus score is 65% moderate-to-strong membranous stain intensity.
Play the video above for an explanation of this CLDN18.2 stain interpretation