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305547
Cytology
Description
Doctorate Pathology Mind Map on Cytology, created by melian.yates on 26/10/2013.
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pathology
pathology
doctorate
Mind Map by
melian.yates
, updated more than 1 year ago
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Created by
melian.yates
almost 11 years ago
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Resource summary
Cytology
Touch Imprints ("Impression Smears")
Rapid Dx of some external lesions & excised tissues (may be subsequently examined by histopath)
Yield fewer cells than scrapings
Risk of only detecting surface inflammation/blood or contaminants
Scrapings
Dx of some external lesion & excised tissue
Collects more cells than impression smears
Parasitology on skin
Scapel perpendicylar to surface being scraped
Blunt spatula for delicate tissues (Ex. Conjunctiva)
Fine Needle Aspirates (FNA)
Cutaneous masses, Internal masses & organs, lymph nodes, etc.
Avoids superficial contamination
Collects samples from deep within the lesion/tissue
Risk of coming out of small lesions, or missing them altogether
Swabs
Tissues which are not readily reached
Vagina, fistulous tracts
Cotton swabs moistened w/ 0.9% NaCl (Saline)
Squash Preparation
FNAs, viscous fluid samples, samples concentrated by centrifugation, samples w/ flecks of cellular material & Bone marrow aspirates
Spreader (top) slide can be at right angles or parallel to the sample slide
Blood/Fluid smear technique
Blood smears, fluids of medium to high cellularity, samples concentrated by centrifugation
Media attachments
Fluid_blood_smear (image/png)
FNA (image/png)
Impression_smears (image/png)
Smears_from_swabs (image/png)
Blood_smear (image/png)
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