Signs of Nothing: Negotiations Over Semiotic Indeterminacy in Danish Lung Cancer Diagnostics

In Denmark, injunctions of "early" cancer diagnosis increasingly imply surveillance of small tissue changes, which may or may not develop into cancer. Based on fieldwork at diagnostic lung cancer clinics and with people in CT surveillance for tissue changes, I explore how detected tissue changes are ascribed meaning as signs of "nothing" or "something." Inspired by Peircean semiotics, I suggest that the semiotic indeterminacy of tissue changes points to how diagnostic socialities both expand medical semiotics and enable this expansion. The article, thereby, contributes to understandings of signs as diagnostic infrastructures.