Leptothrix vaginalis

Author: John Philip, M.D. (see Authors page)
Editor: Ziyan T. Salih, M.D.

Revised: 10 September 2017, last major update February 2015

Copyright: (c) 2003-2017, PathologyOutlines.com, Inc.

PubMed Search: Leptothrix vaginalis
Cite this page: Leptothrix. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/cervixleptothrix.html. Accessed November 20th, 2018.
Definition / general
  • Leptothrix are long, slender, gram positive, non spore forming anaerobic organisms that may be seen in association with Trichomonas
  • Also known as Leptotrichia or Leptotrichia buccalis
  • Oral and vaginal cavities
Clinical features
Case reports
  • No treatment unless associated with a pathogen
Cytology description
  • Long, thin, segmented, filamentous structures
  • Usually nonbranching but occasionally branching may be observed
  • May form loops more frequently in conventional smears
  • May show acute inflammatory changes
  • Tend to form clumps in liquid based cytology preparations (LBC), as opposed to conventional smears
  • Trichomonas and Leptothrix together have been referred to as "spaghetti and meatballs"
Cytology images

Images hosted on other servers:


LBC: Leptothrix with Trichnomonas

Long filamentous structure

Differential diagnosis