Week 1: Intro & review Flashcards
Name the three types of breast biopsies
- Fine needle aspiration
- Core needle biopsy
- Open/surgical biopsy
Characteristics of benign tumors
-Cells closely resemble and may function like normal cells
-Well differentiated
-Stay localized and typically small in size
-Usually a fibrous capsule delineates boundaries of tumor
-Cause problems if size interferes with normal function or excrete hormones
Immunohistochemistry use in cancer?
Can provide info and help determine treatment with info like:
-Where cancer started
-Type of cell it started in
-Whether it’s likely to be slow or fast growing
-If cancer is likely to respond to certain therapies
What is flow cytometry?
-Laboratory technique to detect, identify, and count cells
-Typically used in hematologic malignancies to distinguish cell types
What is tumor grading?
-How poorly cells are behaving and prognosis
-Lower grade= better prognosis
Features of tumor grading:
-Malignant cell morphology: how closely does tumor cell resemble cell of origin
-Mitotic rate: how quickly are the tumor cells dividing
-Nuclear grade: size and shape of tumor cell nucleus
What is tumor staging?
-Based on location, size, lymph node involvement, and metastasis
-TNM system (tumor size, lymph node status, metastasis)
What is considered screening vs diagnostic for cancer?
-Screening: imaging, physical exam, lab tests all suggest cancer is present
-Diagnostic: biopsy with pathology
What is neoadjuvant therapy?
-Occurs before surgical resection
-May help shrink tumor to easier remove
-Can show if treatment is effective by measuring how much tumor shrinks
-Ex: radiation or chemo
What is adjuvant therapy?
-Used after surgical resection
-Help kill of any remaining cancer in body
-Ex: radiation, anti-hormone therapy, chemo
Palliative care vs hospice?
-Palliative: symptom relief, any stage of disease, same time as curative treatment, typically in a hospital
-Hospice: comfort care, prognosis 6 months or less, excludes curative tx, wherever patient is living
What factors can influence response to therapy?
-Genetics
-Performance status
-Nutrition
-Immune system
-Psychological factors
-Social determinants