title: Aspiration cytology of echinococcus oligarthrus. A case report.
abstract: 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.
  
  
  METHODS
  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.
  
  
  CONCLUSIONS
  This seems to be the first case report in English of the cytomorphology of E oligarthrus on fine needle aspiration cytology with histopathologic confirmation.
authors.affiliation: Department of Pathology, St. John's Medical College, Bangalore, India.
authors.forename: U
authors.initials: U
authors.lastname: Kini
authors.forename: S
authors.initials: S
authors.lastname: Shariff
authors.forename: V
authors.initials: V
authors.lastname: Nirmala
mesh_terms: D000293:Adolescent; D000818:Animals; D001707:Biopsy, Needle; D003551:Cysticercosis / Q000175:diagnosis*; D003552:Cysticercus; D003937:Diagnosis, Differential; D004443:Echinococcosis / Q000175:diagnosis* / Q000473:pathology*; D004446:Echinococcus; D006801:Humans; D008297:Male; D013363:Submandibular Gland / Q000469:parasitology* / Q000473:pathology