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ONCOLOGY 1400
Oncology part 2 Detection-Alison Miles
Question | Answer |
---|---|
Alpha-fetoprotein Lab | carcinomas of testicles, pancreas and liver |
Carcinoembryonic antigen (CEA) | increased w/breast, pancreas, liver, kidney and colon cancer; may be elevated for no reason |
Prostate-specific antigen (PSA) | prostate cancer, slightly elevated in benign prostate hyperplasia |
CA 15-3 | metastatic breast cancer |
CA 19-9 | gastrointestinal and pancreatic cancers |
CA 125 | ovarian cancer |
CT | 3 dimensional view of tissue used to determine tumor density, size and location; used in detecting many types of cancer |
Nuclear Imaging | tissurs are observed for changes using radioactive isotope |
MRI | magnetic fields used to differentiate diseased tissue from healthy tissue; used to study blood flow; visualizes tumors hidden by bone |
PET | cross-sectional view of tissue looks at increased concentration of isotopes in malignant cells; differentiates between benign and malignant cells |
Radioimmunoconjugates | monoclonal antibodies labeled w/isotopes are injected IV and accumulate at tumor site which makes tumor visible |
Ultrasound | uses high frequency sound waves; determines if tumor is solid or fluid filled |
Fluoroscopy | x-rays used to look at differences in the densities of body tissues; used for bone and gastric cancers |
Biopsy | tissue samples are excised from the body and are examined microscopically; needle biopsy; surgical excision (best option) |
Frozen section | immediate examination of the cells once tumor removed; specimen is quickly frozen then sliced into thin sheets and observed |
Endoscopy | flexible tubes with special fiber cameras to look at specific body areas |
Gastroscopy | flexible tubes w/special cameras to look at the STOMACH |
Bronchoscopy | flexible tubes w/special cameras to look at the LUNGS |
Colonoscopy | flexible tubes w/special cameras to look at the COLON |
"go lightly" | cleans out the colon when having a Colonoscopy |
Cytology | microscopic exam of cells; used to diagnose malignancies in cells; can be obtained by needle aspiration, scraping, brushing or sputum |