A new study mapped the molecular fingerprint of hemorrhagic IDH-wildtype glioblastoma, suggesting that intratumoral bleeding is tied to identifiable genetic architecture rather than being a purely imaging-driven phenomenon. Researchers at The University of Texas Health Science Center at Houston reported findings aimed at improving how clinicians interpret hemorrhagic presentation in glioblastoma. Separately, a review in Advanced Science argues that pericytes—mural cells that wrap microvessels—should be treated as central regulators in cancer spread rather than passive bystanders. The synthesis describes how pericyte biology shapes tumor vascular behavior and metastasis dynamics. Taken together, the work underscores that tumor vascular events and vessel-associated cell states are increasingly being tied to molecular and functional outputs in aggressive cancers.