Tullio Simoncinis interpretation of science
Tullio Simoncini does not trust scientific research in general, but he does make a few exceptions. He claims that conventional scientific data support his claim that Candida is always present in cancer patients. 

One of the studies is publicly available for everyone to read. According to Tullio Simoncini This study showed coexistence of cancer and Candida in 79% of patients. Already in the summary it is evident that this is wrong. The article describes that in 194.57 blood samples from cancer patients yeasts were detected in 193 (Roughly 1%).  The 79% was the proportion of yeast cultures that were candida albicans or tropicalis species. Candida albicans was only cultured in 42 of the 194.457 samples.

According to Tullio Simoncini, a study summarised here Shows coexistence of Candida in 91 % of cancer patients.
Wrong again . The study describes 109 patients with fatal candida infection. In 91 (83 %) of these Candida albicans was the causative yeast.

According to Tullio Simoncini, another study summarised here shows that candida is present in 97% of cancer patients.
 Wrong again. In that  study they looked at what kind of yeasts were present in cancer patients who had yeast. And in 97,1 % of those various candida species were present.

On his website he also references this study claiming that it 
 

shows that “the global rate of cancer mortality varies between 33% and 75 %. 
Wrong again. T
he study does not deal with the frequency of Candida in cancer patients. It deals with survival among cancer patients who has been diagnosed with candida infection.

It seems that the scientific data that Tullio Simoncini is willing to accept do not show what he claims.


Should you be interested in reading more about Tullio Simoncinis (mis)understanding of scientific data you should pay a visit here.


UPDATE:
A Swedish pseudoscientist has published a case report in a Sweedish psuedoscience journal. The report is about a female who underwent surgery for a breast tumour, that consisted entirely of fungus. There were no cancer cells in the tumour, but the author insists that it was a cancer. The artcile is presented on Tullio Simoncinis website as scientific evidence of his concept. You can read more about this case report here.