Examination of Fresh Tissue Flashcards
Is the microscopic study of the normal tissues of the body
Histology
Is the microscopic study of tissues affected by disease
Histopathology
The simplest, least invasive test and uses the smallest needle to simply remove cells from the area of abnormality
Fine Needle Aspiration
It removes not only cells, but also a small amount of the surrounding tissue.
Core Needle Biopsy
Only a small portion of lesion is sliced or removed from a tissue
Incisional Biopsy
Removal of the entire area in question
Excisional Biopsy
Considered the primary technique for obtaining diagnostic full-thickness skin specimen.
Punch Biopsy
Small fragments of tissue are scraped from a surface (e.g. skin)
Shave Biopsy
Tissue is scooped or spooned to remove tissue or growths from body cavity (eg. Endometrium or Cervical canal)
Curettings
Autolysis is retarted by ___________ and accelerated at _____________.
Cold, Room Temperature
A process whereby a selected tissue specimen is immersed in isotonic salt solution; carefully dissected with a needle and separated by direct or zigzag spread using an applicator stick.
Teasing or Dissociation
Process where small pieces of tissue not more than 1mm in diameter are placed in a microscopic slide and forcibly compressed with another slide or with coverglass
Squash preparation/Crushing
Normally utilized when a rapid diagnosis of the tissue in question is required
Frozen Section
It is recommended when lipids and nervous tissue elements are to be demonstrated
Frozen Section
It is useful in cytological examinations, particularly for cancer diagnosis
Smearing
What are the four Smearing Techniques
Streaking
Spreading
Pull-apart
Touch Preparation/Impression Smear
A smearing technique where using an applicator stick, the material is rapidly and gently applied in a direct or zigzag line throughout the slide to obtain a uniform distribution.
Streaking
A selected portion of the material is transferred to a clean slide and gently spread into a moderately thick film by teasing the mucous strands with an applicator stick.
Spreading
It is done by placing a drop of secretion or sediment upon one slide and facing it to another clean slide
Pull-Apart Technique
A special method where slide surface is in contact and pressed on the site
Touch Preparation/ Impression Smear
Fresh tissue on a frozen section is kept at an atmospheric temperature of _________ to __________.
-10°C, -20°C
What is the advantage of frozen section method?
Rapid processing with less equipment requirement.
The most rapid of the commonly available freezing agents
Liquid Nitrogen
Majority of non-fatty unfixed tissues are sectioned well at temperatures between _______ and _______
-10°C, -25°C