We may soon be able to make easy and early diagnoses of prostate cancer by smell. Investigators have established that a novel noninvasive technique can detect prostate cancer using an electronic nose. In a proof of principle study, the eNose successfully discriminated between prostate cancer and benign prostatic hyperplasia (BPH) by “sniffing” urine headspace (the space directly above the urine sample). Results using the eNose are comparable to testing prostate specific antigen (PSA).

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Source: Elsevier. “Electronic nose sniffs out prostate cancer using urine samples.” ScienceDaily. ScienceDaily, 1 May 2014.