Extracranial germ cell tumors CT dataset

The dataset is organized in a hierarchical directory structure for straightforward data access. At the top level, cases are grouped by tumor category: MTs, ITs, and MGCTs. Within each tumor category folder, two subdirectories are provided: "DICOM" and "NIfTI." The DICOM folder contains individual case folders, each storing the original CT scan series.

The NIfTI folder contains the corresponding images and segmentation masks, all stored in the NIfTI format (.nii.gz). Users can visualize and analyze the data using open-source tools such as ITK-SNAP ( www.itksnap.org)or 3D Slice（download.slicer.org/）, which support interactive 3D exploration of both images and segmentations.