Definition of "immunohistochemical" [immunohistochemical]

• Of, pertaining to, or by means of immunohistochemistry, the use of immunological techniques to study the chemistry of tissues (adjective)

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• "Anatomic Pathology: tissue biopsies and second opinion of glass slide sections, including paraffin immunohistochemical stains."
• "Examining the medical records of more than 5,200 patients who underwent breast-conserving surgery for early, invasive breast cancer, researchers found that tiny cancer cells in the sentinel lymph node -- the first node to which malignant cells are likely to spread from a primary tumor -- detected with a diagnostic procedure called immunohistochemical IHC staining had no effect on overall survival."
• "Trisomy 21 placentas: Histopathological and immunohistochemical findings using proliferating cell nuclear antigen (PCNA) Fetal Diagnosis and Therapy 12 (4), 210-215, 1997."