When the Cancer Scan Is Clean but the Blood Isn’t

by | Jan 16, 2026 | Articles, Cancer, Conditions

Cultivating the Biology of Cancer Remission

There is a new kind of limbo in oncology.  It did not exist twenty years ago.  It arrived with molecular surveillance.  It lives in the space between what we can see and what we can measure.

The cancer is in “remission”.  Then a tumor-informed circulating tumor DNA test turns positive.  Or a circulating tumor cell test remains positive.  The PET scan, however, is pristine.  You’re tumor free, but not cancer free.  The radiologist shrugs politely.  The oncologist says, “We’ll repeat imaging in a few months.”

And so the patient goes home.  And waits.

This moment is medically rational and psychologically devastating.  We can’t see a tumor.  We can’t target what we can’t see.  But biologically, this is not neutral territory.  This is minimal residual disease – not a mass, but a message.  Not a tumor, but a signal.

The conventional plan is to worry and wait.  The integrative question is different.  What internal environment makes microscopic disease less likely to survive?  Remission is not merely the absence of visible disease.  It is a dynamic ecological state.  This is not about panic.  It’s about terrain.

Lowering the Metabolic Growth Signals

Cancer cells are metabolically opportunistic.  Elevated insulin, increased IGF-1 signaling, chronic hyperglycemia, and inflammatory cytokines can all promote proliferation and survival.

We cannot starve cancer in a simplistic way, but we can quiet its favorite signals.

A Mediterranean-style dietary pattern remains one of the most consistently associated nutritional frameworks with reduced cancer recurrence risk.   Emphasis on vegetables, olive oil, legumes, clean proteins, berries, and polyphenol-rich foods helps stabilize glycemic variability and reduce inflammatory tone.

Time-restricted eating, or fasting, when appropriate and individualized, may improve insulin sensitivity and metabolic flexibility.  The goal is not deprivation. It is metabolic steadiness.

When fasting insulin lowers, triglyceride-to-HDL ratios improve, and inflammatory markers soften, we are not “treating cancer.”  We are adjusting terrain.

Strengthening the Quiet Defenses of Immune Surveillance

Most recurrences do not occur in the absence of an immune system.  They occur when immune recognition falters.

Natural killer cells and cytotoxic T lymphocytes are central to ongoing tumor surveillance.  Exercise, particularly resistance training and moderate aerobic conditioning, has been shown to enhance NK cell activity and improve immune competence.

Vitamin D sufficiency is associated with improved immune modulation and has observational links with better cancer outcomes.  Sleep, often underestimated, plays a measurable role in immune regulation and inflammatory control.

Stress physiology also matters.  Chronic cortisol elevation suppresses cellular immunity and shifts inflammatory signaling.  Stress reduction is not indulgent; it is immunologic hygiene.

We are not attempting to “boost” immunity.  We are refining it.

Lowering Inflammatory Noise

Inflammation is essential for healing, but persistent low-grade inflammation creates a permissive microenvironment for angiogenesis and genomic instability.

High-sensitivity CRP, sedimentation rate, LDH, ferritin trends, and metabolic markers offer insight into systemic inflammatory tone.  Nutritional compounds such as curcumin, green tea catechins, sulforaphane, and omega-3 fatty acids have demonstrated anti-inflammatory and, in some studies, adjunctive anticancer properties.

Weight optimization, periodontal health, and microbiome balance further reduce inflammatory burden.

Remission tends to stabilize in low-noise systems.

Muscle, Mitochondria, and Metabolic Flexibility

Skeletal muscle is metabolically protective.  It improves insulin sensitivity, secretes beneficial myokines, and enhances mitochondrial density.

Regular Zone 2 aerobic training improves mitochondrial efficiency and metabolic flexibility, both of which influence systemic inflammation and glucose handling.  Periodic higher-intensity intervals, when safe and individualized, preserves oxygen utilization, a strong predictor of overall mortality and resilience.

Resistance training maintains lean mass and improves endocrine signaling.

The body that adapts well metabolically is less hospitable to dysregulated growth.

The Gut–Immune Conversation

The microbiome modulates immune tone, estrogen metabolism, and systemic inflammation.  Emerging oncology research suggests that microbial diversity may influence tumor biology and even response to immunotherapy.

A diverse fiber intake, fermented foods when tolerated, and careful correction of dysbiosis help support immune balance.

The gut is not a trend. It is a regulatory organ.

Reducing Environmental Burden

Immune bandwidth is finite.

Chronic exposure to mold toxins, endocrine disruptors, heavy metals, and poor air quality increases inflammatory load and oxidative stress.  Reducing unnecessary environmental exposures does not require paranoia, only intention.

Clean air.  Filtered water.  Sensible avoidance of known disruptors.  The immune system should not be distracted.

Testing Circulating Tumor Cells

We specialize in testing for circulating tumor cells in order to determine their genetic mutations and chemosensitivity to conventional treatments as well as natural substances.  Objective evidence-based protocols may then be started to discourage these tumor cells from transitioning into stem cells and sprouting into what is known as a recurrence.

Replacing Waiting with Agency

Surveillance is appropriate.  Passivity is optional.

Serial ctDNA or circulating tumor cell monitoring provides trend data.  If levels fall or stabilize, that is informative.  If they rise, earlier or more aggressive  intervention may be warranted.

Simultaneously, measurable improvements in metabolic markers, body composition, fitness, sleep quality, and inflammatory tone create an internal state that favors immune containment.

Agency reduces anxiety.  Lower anxiety improves physiology.  Physiology influences probability.

We are not guaranteeing outcomes.  We are shifting odds.

The Ecology of Remission

Cancer recurrence is not mechanical.  It is ecological.  Minimal residual disease exists within a host environment. That environment can either support proliferation or resist it.

When molecular signals emerge before imaging findings, it is not merely a warning.  It is a window.

  • A window to refine metabolism.
  • A window to optimize immune surveillance.
  • A window to reduce inflammatory load.
  • A window to strengthen resilience.

Remission is not static.  It is cultivated.  And when the scan is silent but the blood whispers, cultivation matters most.


Author

Scott Rollins, MD, is Board Certified with the American Board of Family Practice and the American Board of Anti-Aging and Regenerative Medicine.  He specializes in bioidentical hormone replacement for men and women, thyroid and adrenal disorders, fibromyalgia and other complex medical conditions.  He is founder and medical director of the Integrative Medicine Center of Western Colorado (www.imcwc.com) and Bellezza Laser Aesthetics (www.bellezzalaser.com).   Call (970) 245-6911 for an appointment or more information.

 

Thanks for sharing this article!