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Diagn Cytopathol. 2000 Oct;23(4):245-8.

Evaluation of mild-to-moderate dysplasia on cervical-endocervical (Pap) smear: a subgroup of patients who bridge LSIL and HSIL.

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  • 1Department of Pathology and Laboratory Medicine, Cytopathology Section, University of Pennsylvania Medical Center, Philadelphia, Pennsylvania 19104-4283, USA.

Abstract

The Bethesda System recommends Pap smear diagnosis to be based on the most abnormal cells present, regardless of number. Our reporting system includes a diagnostic category of mild-to-moderate dysplasia (D1-2), defined as cases with only a few moderately dysplastic cells. We evaluated the validity of a D1-2 diagnostic category by reevaluation of 58 cases with subsequent follow-up (up to 24 months). On biopsy and/or Pap smear follow-up, 24 cases (41%) showed LSIL and 34 cases (59%) showed HSIL. Index smears from these cases were examined by two cytopathologists blinded to patient follow-up for the following morphologic features: volumes (scale 1-4) of LSIL, HSIL, and dyskeratosis, HSIL as single cells or syncytial fragments, and acute inflammation. None of the morphologic features evaluated were significantly different between the LSIL and HSIL follow-up groups based on univariate and multivariate logistic regression analysis. The diagnosis of D1-2 on Pap smear is a valid diagnostic category that defines a subgroup of patients with both LSIL and HSIL follow-up, which cannot be reliably predicted based on morphology alone.

Copyright 2000 Wiley-Liss, Inc.

PMID:
11002365
[PubMed - indexed for MEDLINE]
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