# Paint with round brush

**URL:** <https://discourse.slicer.org/t/paint-with-round-brush/41153>\
**Category:** Support\
**Created:** [January 19, 2025, 1:25pm UTC](https://discourse.slicer.org/t/paint-with-round-brush/41153 "2025-01-19T13:25:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Tobias\_Koffer](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/tobias_koffer/32/79150_2.png) [@Tobias\_Koffer](https://discourse.slicer.org/u/Tobias_Koffer)\
**Post date:** [January 19, 2025, 1:25pm UTC](https://discourse.slicer.org/t/paint-with-round-brush/41153/1 "2025-01-19T13:25:06Z")

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Hi, I have to segment a laryngeal tumor, but the paint function doesnt work on the tumor tissue, in other words, it doesnt recognize the tissue? Is there a better tool for tumor segmentation in that area?  
Thank you

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [January 19, 2025, 1:30pm UTC](https://discourse.slicer.org/t/paint-with-round-brush/41153/2 "2025-01-19T13:30:07Z")

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Tumors can often be quickly and accurately segmented using [`Grow from seeds`](https://slicer.readthedocs.io/en/latest/user_guide/modules/segmenteditor.html#grow-from-seeds) effect. Just paint a scribble inside and outside the tumor in two orthogonal slices and click `Initialize` to see a preview. Then review and make corrections as needed (by drawing additional scribbles).