biochemical biopsy

biochemical biopsy

A diagnostic manoeuvre of uncertain utility, in which small tissue samples or cyst fluids are chemically analysed to quantify analytes—e.g., hormones, metabolites—which suggest the presence of a benign or malignant lesion.
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So while doing his internship, he began research into Chinese herbal medicine treatments for cancer patients and a new technique of biochemical biopsy for tumor markers.