Malignant Man is a 2011 graphic novel by James Wan.
Diagnosed with terminal cancer, Alan Gates is resigned to die, until he learns that his tumor is really a parasite.
With a new lease on life and incredible, otherworldly powers, Alan must fight against an evil army buried beneath society's skin, all the while unlocking the secrets of his forgotten past.
[1] In June 2014, 20th Century Fox acquired the rights to the comic and set James Wan to direct and produce the adaptation.
[4] Wan would later clarify that his film Malignant was not based on the graphic novel despite the name similarities.