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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 |