/usr/include/ is in libvtkgdcm2-dev 2.8.4-1build2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/gdcm-2.8/
/usr/include/gdcm-2.8/vtkGDCMImageReader.h
/usr/include/gdcm-2.8/vtkGDCMImageReader2.h
/usr/include/gdcm-2.8/vtkGDCMImageWriter.h
/usr/include/gdcm-2.8/vtkGDCMMedicalImageProperties.h
/usr/include/gdcm-2.8/vtkGDCMPolyDataReader.h
/usr/include/gdcm-2.8/vtkGDCMPolyDataWriter.h
/usr/include/gdcm-2.8/vtkGDCMTesting.h
/usr/include/gdcm-2.8/vtkGDCMThreadedImageReader.h
/usr/include/gdcm-2.8/vtkGDCMThreadedImageReader2.h
/usr/include/gdcm-2.8/vtkImageColorViewer.h
/usr/include/gdcm-2.8/vtkImageMapToColors16.h
/usr/include/gdcm-2.8/vtkImageMapToWindowLevelColors2.h
/usr/include/gdcm-2.8/vtkImagePlanarComponentsToComponents.h
/usr/include/gdcm-2.8/vtkImageRGBToYBR.h
/usr/include/gdcm-2.8/vtkImageYBRToRGB.h
/usr/include/gdcm-2.8/vtkLookupTable16.h
/usr/include/gdcm-2.8/vtkRTStructSetProperties.h