Immune Systems Advisor

Reports of unusual white, fibrous and rubber-like structures being removed from blood vessels during embalming have attracted widespread attention since around 2021. In 2026, researchers began formally characterizing some of these structures as anomalous intravascular casts (AICs) . What do the studies actually show—and what remains unknown? Key takeaway Unusual pale, elongated intravascular structures have been documented and are now being subjected to laboratory analysis. Early research suggests that at least some specimens are protein- and fibrin-rich and may have unusual structural characteristics. However, the available evidence is still limited and does not establish how common these structures are, exactly when they form, what causes them, or whether they increase the risk of disease or death. The subject has become controversial partly because photographs and videos circulated before there was much formal scientific characterization. That...

Medically reviewed by: OneDayMD Editorial Team | Last updated: August 2026 (includes link to Dr Paul Marik and Dr Justus Hope latest Substack article related to "turbo cancer") For years, clinicians and patients have described a disturbing pattern — cancers appearing suddenly, growing at unexpected speed, or diseases thought stable returning aggressively within weeks or months. A sudden rise in younger people with early onset cancers which are more aggressive with more (and unusual) genetic change has been increasingly noted - colorectal, breast and GI tract cancers seem to lead the way. Some called them “turbo cancers”. In oncology, the phenomenon is known as hyper-progression: cancers that accelerate far more rapidly than expected. Early on, these reports were ignored. They surfaced as scattered cases — isolated anecdotes that were easy to dismiss. One of the first to speak publicly was Belgian immunologist Michel Goldman, whose story was published in...