Spontaneous cancer remission, also called spontaneous healing or spontaneous regression, are holistic in nature, meaning that the patient’s Lifestyle choices and attitudes surfaced as decisive. For conventional medicine, spontaneious regressions are unexpected improvement or cure from a cancer that usually progresses with the conventional allopathic oncology. In this perspective, the spontaneous regression and remission from cancer was defined by Everson and Cole in their 1966 book as:
“….the partial or complete disappearance of a malignant tumour in the absence of all treatment, or in the presence of therapy which is considered inadequate to exert significant influence on neoplastic disease.” (1)
Frequency of spontaneous regression in cancer
Ths is the key issue. In the mainstream litterature, 1 in 100,000 cancers where considered to be reversed. (2) On the other hand, the ACR Institute’s experience and belief is that most cancers can be reversed provided the treatment is holistic and avoids most of conventional oncology’s harmful practices.
One of the reasons why so few spontaneious cancer remissions are registered in the Mainstream is because most cases are not well documented or the physician was not willing to publish the reversal case, or simply because the patient ceased to attend the conventional clinic and got cured on his or her own.
In a carefully designed study on mammography it was found that 22% of all breast cancer cases underwent spontaneous regression.. Other cancers also have been shown to spontaneously regress, in particular thyroid and prostate.
Causes of Spontenous Reversals
In many cases, available knowledge permits one to infer that hormonal influences were important. … In other cases, the protocols strongly suggest that an immune mechanism was responsible.
The ACR Institute’s experience is that both these mechanisms (hormonal and immune) are responsible for most spontaneous regression, or what we can holistic reversals.
Other complementary pathways of cancer regressions are apoptosis (programmed cell death) and anti-angiogenesis, both of which are processes that go into sponatanous regression.
There are several case reports of spontaneous regressions from cancer occurring after a fever brought on by infection, suggesting a possible causal connection. If this coincidence in time would be a causal connection, it should as well precipitate as prophylactic effect, i.e. feverish infections should lower the risk to develop cancer later. This could be confirmed by collecting epidemiological studies. 
In the Mainstream, Challis and Stam, even more at a loss, concluded in 1989, “In summary, we are left to conclude that, although a great number of interesting and unusual cases continue to be published annually, there is still little conclusive data that explains the occurrence of spontaneous regression.”
Additional Confirmation Data
Rohdenburg (1918) summarized 185 spontaneous regressions
Fauvet reported 202 cases between 1960–1964
Boyd reported 98 cases in 1966
Everson and Cole described 176 cases between 1900–1960
Challis summarized 489 cases between 1900–1987
O’Regan Brendan, Carlyle Hirschberg collected over 3,500 references from the medical literature
Hobohm, in a meta-analysis, investigated about 1000 cases
Turner, in a qualitative research study, conducted interviews with 20 patients with spontaneous remissions
Gonzalas reported 50 cases.
Gerson: 50 cases.
- Everson T., Cole W. (1968) Spontaneous Regression of Cancer Philadelphia, JB Saunder & Co (Book)
- Hobohm U (October 2001). “Fever and cancer in perspective”. Cancer Immunol. Immunother. 50 (8): 391–6. doi:10.1007/s002620100216.
- Per-Henrik Zahl; Jan Mæhlen; H. Gilbert Welch (Nov 24, 2008). “The Natural History of Invasive Breast Cancers Detected by Screening Mammography”. Arch. Intern. Med. 168 (21): 2311–6. doi:10.1001/archinte.168.21.2311.
- Challis GB, Stam HJ (1990). “The spontaneous regression of cancer. A review of cases from 1900 to 1987″. Acta Oncol. 29 (5): 545–50. doi:10.3109/02841869009090048.
- A.Weinberg: The Biology of Cancer, Garland Science 2007
- Hobohm U (February 2005). “Fever therapy revisited”. Br. J. Cancer. 92 (3): 421–5. doi:10.1038/sj.bjc.6602386. PMC 2362074.
- Hobohm U, Stanford JL, Grange JM (2008). “Pathogen-associated molecular pattern in cancer immunotherapy”. Crit. Rev. Immunol. 28 (2): 95–107. doi:10.1615/critrevimmunol.v28.i2.10.
- Maletzki C, Linnebacher M, Savai R, Hobohm U (2013). “Mistletoe lectin has a shiga toxin-like structure and should be combined with other Toll-like receptor ligands in cancer therapy” (PDF). Canc. Immunol. Immunother. 62 (2): 1283–1292. doi:10.1007/s00262-013-1455-1.
- Rohdenburg (1918). “Fluctuations in the growth energy of tumors in man, with esspecial reference to spontaneous recession”. J Cancer Res. 3: 193–225.
- FAUVET J, ROUJEAU J, PIET R (June 1964). “[SPONTANEOUS CANCER CURES AND REGRESSIONS]”. Rev Prat (in French). 14: 2177–80. PMID 14157391.
- Boyd W: The spontaneous regression of cancer. Charles Thomas, Publ., Springfield Ill. 1966 (Book)
- Cole WH (November 1976). “Spontaneous regression of cancer and the importance of finding its cause”. Natl Cancer Inst Monogr. 44: 5–9. PMID 799760.
- O’Regan, Brendan; Hirschberg, Carlyle (1993). Spontaneous Remission. An Annotated Bibliography. Sausalito, California: Institute of Noetic Sciences. ISBN 0-943951-17-8.
- Turner, Kelly Ann (2010). Spontaneous Remission of Cancer: Theories from Healers, Physicians, and Cancer Survivors. Berkeley: UC Berkeley Electronic Theses and Dissertations.
- Uwe Hobohm: Healing Heat, 2014, ISBN 978-0-557-02885-6
- Uwe Hobohm: Harnessing Infection to Fight Cancer, American Scientist January–February 2009 
- The Body Can Beat Terminal Cancer — Sometimes. Discover Magazine, September 2007