Difference between revisions of "Talk:Low-grade squamous intraepithelial lesion"
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(Created page with "==LSIL criteria== The London (cytology) criteria - 2 of 3: #Perinuclear clearing. #Membrane irregularities (5 cells in one field - FD ~ 1.1 mm). #Nuclear enlargement > 2x lymp...") |
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Latest revision as of 15:17, 6 May 2016
LSIL criteria
The London (cytology) criteria - 2 of 3:
- Perinuclear clearing.
- Membrane irregularities (5 cells in one field - FD ~ 1.1 mm).
- Nuclear enlargement > 2x lymphocyte.
Augmented (London) criterium includes:
- Neoplastic transisition (sharp transisition from normal to abnormal - gradient over 2-3 cell distance).
Required if #3 not obvious:
- Binucleation (>2 cells).
Relative exclusions:
- Nucleoli ( >5 in one field - FD ~ 1.1 mm).
Exclusions:
- Cytoplasm to nucleus ratio =< 2:1; HSIL or invasive SCC.