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Table 1 Diagnostic guideline for oral cytology, proposed by the Diagnostic Guideline Committee for Oral Cytology of the Japanese Society of Clinical Cytology

From: Diagnostic accuracy of oral cancer cytology in a pilot study

Abbreviation Corresponding pathological diagnosis
NILM normal, infection, inflammation, lichen planus, leukoplakia, benign epithelial lesion, etc.
LSIL mild and moderate dysplasia, and SIN1 and SIN2; mentioned in WHO 2005
HSIL severe dysplasia, carcinoma in situ, and SIN3; mentioned in WHO 2005
SCC squamous cell carcinoma
Other malig. other malignancy
IFN indefinite for neoplasia or non-neoplasia
  1. Cytological diagnoses were classified as NILM (negative for intraepithelial lesion or malignancy), LSIL (low-grade squamous intraepithelial lesion), HSIL (high-grade squamous intraepithelial lesion), or SCC (squamous cell carcinoma) and IFN (indefinite for neoplasia or non-neoplasia)