Adult Filarial Worms in tissue sections of a painless Breast Mass

Filariasis is a global health problem. Lymphatic Filariasis caused by Wuchereria bancrofti and Brugia malayi, it is an important public health problem in India. Both parasites produce pathology limited to lymphatic system and are essentially has similar clinical presentations in humans. Presence of microfilaria & adult worm in breast lump histopathological sections is a rare finding. We report an unusual case of filarial worm with surrounding granulomatous inflammation in breast mass of a 35yrs old woman who presented with a painless lump in breast since 2 months. It was diagnosed clinically as Fibroadenoma. FNAC showed mainly chronic inflammatory cells was inconclusive. The mass was excised & processed for histopathological examination which confirms the presence of adult filarial worm with surrounding granuloma in breast mass.