Bancroftian Filariasis is a tropical and subtropical disease caused by Wuchereria bancrofti and transmitted by the Culex mosquitoes. The diagnosis of it is conventionally made by demonstrating microfilariae in the peripheral blood smear. Microfilaria and adult filarial worm have been incidentally detected in fine needle aspirates of various lesions. We here report a rare case presentation of Bancroftian filariasis in 38 years old  male coming from an endemic area with swelling in subcutaneous tissue of right mid–arm. Our aim is to highlight the finding of microfilaria in fine needle aspiration cytology in an unsuspected case at an unusual site.

 This case report signifies the importance of FNAC in early diagnosis of lymphatic filariasis which may present as isolated lymphadenopathy and importance of meticulous screening cytological smears .