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Normal cells / non-neoplastic findings
Small blue cells
Reviewer: Farnaz Hasteh, M.D., UCSD Medical Center (see Reviewers page)
Revised: 5 March 2011, last major update March 2011
Copyright: (c) 2006-2011, PathologyOutlines.com, Inc.
● Associated with tamoxifen therapy (present in 40% of Pap smears of patients with tamoxifen therapy) and atrophy
● Not associated with malignancy
● May represent reserve cells of cervical/vaginal epithelium (Arch Pathol Lab Med 2001; 125:1047)
● Tight clusters of undifferentiated small cells with minimal cytoplasm or naked nuclei, round to oval nuclei, bland chromatin, indistinct nucleoli
Dark, tightly cohesive clusters
● Endometrial cells: irregular nuclear contours, degenerative appearance, coarse chromatin
● Endometrial carcinoma: larger cells, hyperchromatic nuclei with coarse chromatin and distinct nucleoli
● Carcinoid tumor
● Small cell carcinoma
● Adenoid cystic carcinoma
● Adenoid basal carcinoma
● Lobular breast carcinoma: large plasmacytoid cells with irregular nuclear membrane, coarse chromatin, prominent nucleoli, clinical history
Cervix-cytology > Normal cells / non-neoplastic findings > Small blue cells
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