The tumor that vanished without treatment – what actually happened?

A few tumours were treated and disappeared, as planned. A few more were never touched, and they disappeared too. This is the story of one of my patients: a raised PSA, a biopsy, a cryotherapy plan, and a result I cannot fully explain. I walk through the abscopal effect, the metabolic theory of cancer, and what the man himself did alongside his treatment. Then I stay honest about how little we actually know. — What you’ll learn — • What the abscopal effect is, and why it remains an open question in medicine • How PET scans exploit cancer's appetite for glucose, and what that tells us • What Warburg's metabolic theory does and does not explain • What the evidence really says on vitamin D and lycopene, with the caveats • Why one striking case is not a treatment recommendation Subscribe if you want honest, story-driven medicine. This is general information, not personal medical advice — for your own situation, speak to your doctor. — Chapters — 0:00 Two sets of tumours, both gone 3:34 Cancer lives inside a body 10:29 The untreated tumours vanished 13:24 Did the preparation matter? — Sources & references — • PET scans exploit cancer's glucose appetite — established clinical use — EANM tumour PET/CT procedure guidelines; J Nucl Med (Warburg/FDG biology reviews) https://www.ncbi.nlm.nih.gov/pmc/arti... https://pmc.ncbi.nlm.nih.gov/articles... https://www.sciencedirect.com/science... • Higher serum vitamin D linked to better survival/response on immunotherapy (2025 SR & meta-analysis) — Yang et al., Nutr Res 2025;141:82-95 (SR & meta-analysis) https://pubmed.ncbi.nlm.nih.gov/40885... https://www.sciencedirect.com/science... • Higher lycopene levels inversely associated with prostate cancer risk (2025 analysis, ›100 cohorts) — Balali et al., Front Nutr 2025 (10.3389/fnut.2025.1516048) https://pmc.ncbi.nlm.nih.gov/articles... https://www.frontiersin.org/journals/... • ~46 abscopal cases documented in world literature, 1969–2014 — Abuodeh et al., Curr Probl Cancer 2016 (systematic review of abscopal case reports) https://pubmed.ncbi.nlm.nih.gov/26582... https://www.sciencedirect.com/science... — Important context — This describes a single clinical observation, not a general treatment recommendation. On this — “Metabolic therapy lacks large RCTs proving survival benefit” — the broader scientific evidence is currently mixed. Individual responses can differ from population-level results. Always discuss with your own clinician. This describes a single clinical observation, not a general treatment recommendation. On this — “Obesity/metabolic syndrome raise inflammatory signals (IL-6, TNF-α) that suppress anti-tumour immunity” — the broader scientific evidence is currently mixed. Individual responses can differ from population-level results. Always discuss with your own clinician. This describes a single clinical observation, not a general treatment recommendation. On this — “First cryotherapy abscopal cases were in prostate cancer — 3 patients with distant regression” — the broader scientific evidence is currently mixed. Individual responses can differ from population-level results. Always discuss with your own clinician. This describes a single clinical observation, not a general treatment recommendation. On this — “Local ablation can prime immunity like a vaccine — biologically plausible, not reliable” — the broader scientific evidence is currently mixed. Individual responses can differ from population-level results. Always discuss with your own clinician. This describes a single clinical observation, not a general treatment recommendation. On this — “This case: n=1, preliminary evidence grade” — the broader scientific evidence is currently mixed. Individual responses can differ from population-level results. Always discuss with your own clinician. — Medical disclaimer — Medical disclaimer: This video is for general information and education only. It is not medical advice and is not a substitute for a consultation with a qualified healthcare professional. Always seek the advice of your own doctor or another qualified clinician about any medical condition or before making any decision about your health. Never disregard professional medical advice, or delay seeking it, because of something you have watched here.