Unsuspected isolated breast hydatidosis: a cytological diagnosis. Cytology

摘要

A 26-year-old female presented with a progressively increasing lump in left breast of 4 months duration. On examination the lump measured 3 x 3 cm in size, well defined, soft to firm, non-tender and freely mobile. A clinical diagnosis of fibroadenoma was made and patient referred for FNAC. The aspirate was 0.5 ml of whitish fluid. Giemsa-stained smears showed abundant proteinaceaous material in the background with areas of necrosis and many inflammatory cells including polymorphs, eosinophils and histiocytes. Also present were multiple characteristic laminated membranous structures along with numerous small refractile hooklets (Figure 1). A diagnosis of hydatid disease of the breast was made, and detailed dinico-radiological evaluation was advised. There was no history of contact with sheep or dog. No evidence of primary disease or other visceral involvement was found on computed tomography (CT) and ultraso-nography (USG).