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Atlas Interpretation:
Interpreted image
Type of Preparation:
ThinPrep/ LBP


Clinical History:
36 year old woman, routine exam, onset menses

NILM: menstrual smear

Cytomorphologic Criteria:
Three-dimensional cluster with slightly larger nuclei and nucleoli.

Explanatory Notes:
Endometrial cells are only reported in women 40 or over if the glandular component is present. In this case the age is 36 years and the patient is menstruating: thus the endometrial cells do not need to be reported. Endometrial cells on liquid based preparations may look more worrisome than conventional Pap smears because nuclear details are preserved and more easily detected.

Two follow-up Pap tests have been normal

Bethesda Interobserver Reproducibility Data:
NILM: Negative for Intraepithelial Lesion or Malignancy # people picked NILM: Negative for Intraepithelial Lesion or Malignancy 402 86%
Endometrial cells in a woman >= 40 # people picked Endometrial cells in a woman >= 40 16 3%
ASC-US # people picked ASC-US 0 0%
ASC-H # people picked ASC-H 1 0%
LSIL # people picked LSIL 0 0%
HSIL # people picked HSIL 0 0%
Invasive Squamous Cell Carcinoma # people picked Invasive Squamous Cell Carcinoma 0 0%
Atypical Endocervical Cells # people picked Atypical Endocervical Cells 3 1%
Atypical Endometrial Cells # people picked Atypical Endometrial Cells 37 8%
Adenocarcinoma in situ (AIS), Endocervical # people picked Adenocarcinoma in situ (AIS), Endocervical 2 0%
Adenocarcinoma # people picked Adenocarcinoma 8 2%
469 interpretations were submitted.

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