Type of Preparation: Conventional Magnification: High Clinical History: The patient is a 52 year old with abnormal uterine bleeding Interpretation: Endometrial cells are present in a woman >= 40 years of age. Negative for squamous intraepithelial lesion. (See Note) Note: Endometrial cells after age 40, particularly out of phase or after menopause may be associated with benign endometrium, hormonal alterations and less commonly, endometrial /uterine abnormalities. Clinical correlation is recommended Cytomorphologic Criteria: In this field, single cells with abundant eccentric cytoplasm and indented or reniform nuclei characteristic of superficial stromal cells/histiocytes are seen. Histiocytes are often associated with and indistinguishable from superficial stromal cells. Explanatory Notes: Endometrial glandular cells were seen in other field(s), and thus endometrial cells were reported. Pap test with only histiocytes/superficial stromal cells should be reported as "Negative for intraepithelial lesion or malignancy." Histiocytes/superficial stromal cells alone do not have independent diagnostic significance and should NOT be reported in the same context as exfoliated glandular cells. Follow-up: Endometrial carcinoma in a background of endometrial hyperplasia