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Cytomorphologic profile of lymphatic filariasis.

OBJECTIVE
To review the cytologic findings in 34 cases of lymphatic filariasis reported on fine needle aspiration cytology for the identification of various parasitic structures.


STUDY DESIGN
Retrospective study of consecutive cytologically diagnosed lymphatic filariasis in a nine-year period.


RESULTS
Thirty-three cases were confirmed as filariasis; 30 had microfilariae (group 1). Three cases (group 2) showed no microfilariae. The diagnosis in group 2 was based on the identification of an adult male worm (1 case), nongravid female worm (1 case) and fertilized eggs (1 case). Thirteen cases in group 1 also had fragments of gravid female worm.


CONCLUSION
Lymphatic filariasis can be diagnosed in the absence of microfilariae by identifying other parasitic fragments.