PAGE 1 Flashcards
preparation, processing and staining of tissue sections of tissue sections for microscopic study to be interpreted by the pathologist
HISTOTECHNIQUES
study of disease at the tissue level
HISTOPATHOLOGY
TYPES OF SPECIMENS
- AUTOPSY MATERIALS
2. SURGICAL MATERIALS
examined to determine the cause of death
AUTOPSY MATERIALS
otherwise referred to as surgical or biopsy materials
SURGICAL MATERIALS
examined to provide a diagnosis
SURGICAL MATERIALS
PROCEDURES FOR SURGICAL MATERIALS
- FINE NEEDLE ASPIRATION
- CORE NEEDLE BIOPSY
- INCISIONAL BIOPSY
- EXCISIONAL BIOPSY
- PUNCH BIOPSY
- SHAVE BIOPSY
- CURETTINGS
removal of cells from the area of abnormality
FINE NEEDLE ASPIRATION
considered as the simplest and least invasive method of collecting biopsy specimens
FINE NEEDLE ASPIRATION
method of collection for fluid-containing tumors
FINE NEEDLE ASPIRATION
removal of cells and small amount of surrounding tissue
CORE NEEDLE BIOPSY
removal of cells with more surrounding tissue
INCISIONAL BIOPSY
removal of the entire area in question
EXCISIONAL BIOPSY
Ensure complete removal of the lesion
EXCISIONAL BIOPSY
Confirm that the diagnosis is correct
EXCISIONAL BIOPSY
removal of 3 to 4 mm cylindrical core of tissue samples
PUNCH BIOPSY
SIZE FOR CUTTING SMALL LESION IN PUNCH BIOPSY
2 MM
SIE FOR CUTTING LARGE LESION IN PUNCH BIOPSY
4 MM
lesion should be at the center
PUNCH BIOPSY
removal of small fragments of tissue from a surface
SHAVE BIOPSY
removal of tissue or growths from body cavities
CURETTINGS
STORAGE FOR SPECIMEN
1 MONTH TO 1 YEAR
STORAGE FOR Tissue Blocks
3 TO 10 YEARS
STORAGE OF Slides
INDEFINITE
STORAGE FOR Records (request and result forms)
PERMANENT
FACTORS TO BE CONSIDERED IN CHOOSING A METHOD
- Structural and chemical components to be studied
- Nature and amount of sample to be evaluated
- The need to provide an immediate diagnosis
LABORATORIES PERFORMING HISTOTECHNIQUES
- DIAGNOSTIC LABORATORIES
2. RESEARCH LABORATORIES
PROCEDURES CONDUCTED IN DIAGNOSTIC LABORATORIES
- FRESH TISSUE EXAMINATION
2. PRESERVED TISSUE EXAMINATION
No fixative required
FRESH TISSUE EXAMINATION
FRESH TISSUE EXAMINATION IS EXAMINED USING WHAT TYPE OF MICROSCOPE
- BRIGHTFIELD OR PHASE-CONTRAST MICROSCOPE
DYES USED FOR STAINING FRESH TISSUE EXAMINATION
SUPRAVITAL OR DIFFERENTIAL DYES