Degos Disease Presenting as a Hemorrhagic Brain Mass

The authors received no external funding. Artificial intelligence (AI; DeepSeek-V4-Pro, version v4-pro, released April 24, 2026, DeepSeek Inc.) was used only for language polishing of the manuscript text; no AI was used for image processing, diagnostic interpretation, or figure generation. J.W. and F.L. contributed to the conception and design of the study; J.W. and F.L. contributed to the acquisition and analysis of data; J.W. and F.L. contributed to drafting the text or preparing the figures. The authors have nothing to report. Relevant anonymized data are available from the corresponding author upon reasonable request. Raw DICOM files and clinical records are not publicly deposited per institutional review board (IRB) waiver of informed consent and institutional restrictions.