Cervix - Cytology
Normal cells / nonneoplastic findings
Blue blobs



Topic Completed: 1 August 2010

Revised: 25 April 2019

Revised: 20 December 2018, last major update August 2010

Copyright: (c) 2006-2017, PathologyOutlines.com, Inc.

PubMed search: blue blobs


Varsha Manucha, M.D.
Page views in 2018: 666
Page views in 2019 to date: 484
Cite this page: Manucha V. Blue blobs. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/cervixcytologyblueblobs.html. Accessed August 24th, 2019.
Definition / general
  • Represent condensed mucus, degenerated bare nuclei or precipitating hematoxylin
  • In postmenopausal women, represent parabasal / intermediate squamous cells with various degrees of degeneration (Acta Cytol 2000;44:547)
  • May have "string of pearls" appearance on ThinPrep in postmenopausal atrophy (Diagn Cytopathol 2010;38:233)
Cytology description
  • Dark blue, rounded, amorphous masses
Electron microscopy description
  • Cellular skeletons with residual tonofilaments enmeshed within a loose cytoskeleton matrix and nuclei with variable degrees of degeneration (Acta Cytol 2000;44:547)
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