Aspiration Cytology of Echinococcus Oligarthrus. A Case Report

Acta Cytol. Mar-Apr 1997;41(2):544-8. doi: 10.1159/000332554.


Background: Fine needle aspiration cytology is a useful technique in the diagnosis of several parasitic infections. The present case highlights the aspiration cytology findings in a case of Echinococcus oligarthrus infection, a rare variant of the Echinococcus species affecting humans. To the best of our knowledge, this is the first case report on the cytology of E oligarthrus in English.

Case: A submandibular swelling developed in a 14-year-old male. A mistaken diagnosis of Cysticercus cellulosae was made on the first aspirate and of a hydatid cyst (Echinococcus granulosus) on the second aspirate. A diagnosis of E oligarthrus was made on subsequent histopathologic examination of the excised lesion.

Conclusion: This seems to be the first case report in English of the cytomorphology of E oligarthrus on fine needle aspiration cytology with histopathologic confirmation.

Publication types

  • Case Reports

MeSH terms

  • Adolescent
  • Animals
  • Biopsy, Needle
  • Cysticercosis / diagnosis*
  • Cysticercus
  • Diagnosis, Differential
  • Echinococcosis / diagnosis*
  • Echinococcosis / pathology*
  • Echinococcus*
  • Humans
  • Male
  • Submandibular Gland / parasitology*
  • Submandibular Gland / pathology