# \[OHIF Plugin\] ReferencedSeriesSequence is missing for the SEG

**URL:** <https://discourse.orthanc-server.org/t/ohif-plugin-referencedseriessequence-is-missing-for-the-seg/4874>\
**Category:** General\
**Created:** [July 5, 2024, 11:28pm UTC](https://discourse.orthanc-server.org/t/ohif-plugin-referencedseriessequence-is-missing-for-the-seg/4874 "2024-07-05T23:28:54Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![prerakmody](https://discourse.orthanc-server.org/letter_avatar_proxy/v4/letter/p/ebca7d/32.png) [@prerakmody](https://discourse.orthanc-server.org/u/prerakmody)\
**Post date:** [July 5, 2024, 11:28pm UTC](https://discourse.orthanc-server.org/t/ohif-plugin-referencedseriessequence-is-missing-for-the-seg/4874/1 "2024-07-05T23:28:54Z")

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## Issue

I have a .dcm file with `modality=SEG` that I am able to view in viewer . ohif . org / local - currently v3.8.3, but am not able to view in the OHIF viewer within Orthanc - currently 3.9.0-beta.16.

## Attempts to resolve issue

- Upon checking the console I see an error - `ReferencedSeriesSequence is missing for the SEG`, however, I have confirmed that this tag is present in the SEG .dcm file.
- I already raised this issue in [OHIF Issues](https://github.com/OHIF/Viewers/issues/4271). Pasting the images and data here again.

 ![ohif-seg-dicomtagmissing](https://discourse.orthanc-server.org/uploads/default/original/2X/e/ebf42b491716b813c10b2474c65cb1cb77d59145.jpeg)

## To reproduce

- I have used the Docker image - jodogne/orthanc-plugins/1.12.3
- Download [data](https://file.io/gFgWE0LCxapf)
  - The data consists of 3 x CT and 1 x SEG .dcms

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**Author:** ![alainmazy](https://discourse.orthanc-server.org/user_avatar/discourse.orthanc-server.org/alainmazy/32/1576_2.png) [@alainmazy](https://discourse.orthanc-server.org/u/alainmazy)\
**Post date:** [July 10, 2024, 7:34am UTC](https://discourse.orthanc-server.org/t/ohif-plugin-referencedseriessequence-is-missing-for-the-seg/4874/2 "2024-07-10T07:34:22Z")

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Hi,

Which data source are you using ? Have you tried with dicomweb ?  
[https://orthanc.uclouvain.be/book/plugins/ohif.html#using-dicomweb](https://orthanc.uclouvain.be/book/plugins/ohif.html#using-dicomweb)

BTW, the sample data is not available anymore.

Best regards,

Alain.

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<div class="post-metadata">

**Author:** ![prerakmody](https://discourse.orthanc-server.org/letter_avatar_proxy/v4/letter/p/ebca7d/32.png) [@prerakmody](https://discourse.orthanc-server.org/u/prerakmody)\
**Post date:** [July 11, 2024, 1:54pm UTC](https://discourse.orthanc-server.org/t/ohif-plugin-referencedseriessequence-is-missing-for-the-seg/4874/3 "2024-07-11T13:54:55Z")

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1. The platform did not allow me to add more than two two links, so here is the other way to download the data

2. Add yes, I use the dicomweb plugin

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**Author:** ![alainmazy](https://discourse.orthanc-server.org/user_avatar/discourse.orthanc-server.org/alainmazy/32/1576_2.png) [@alainmazy](https://discourse.orthanc-server.org/u/alainmazy)\
**Post date:** [July 12, 2024, 3:28pm UTC](https://discourse.orthanc-server.org/t/ohif-plugin-referencedseriessequence-is-missing-for-the-seg/4874/4 "2024-07-12T15:28:01Z")

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I have updated the [OHIF issue](https://github.com/OHIF/Viewers/issues/4271). Let’s continue the discussion there …