Mass Spectrometry-based Cancer Detection via Hand-held Extraction Device

**Semantic type:** Diagnostic Procedure

**Definition:** A method of cancer detection that uses an in vivo or ex vivo tissue as a specimen source for mass spectrometry. A hand-held device collects biological molecules from a tissue sample surface via a solid-liquid extraction mechanism and transports the molecules to a mass spectrometer for analysis. The composition of the extracted molecules can be used to predict if the tissue sample contains cancerous cells using machine learning algorithms and statistical models.

**Synonyms:** - MasSpec Pen - preciso MasSpec Pen System