Cysticercus of the Breast which Mimicked a Fibroadenoma: A Rare Presentation.

Human cysticercosis is an infection which is caused by the larvae of the pork tapeworm, Taenia solium. They can affect any part of the body, the most common sites being the muscle, the CNS and the subcutaneous tissues. In this report , we are presenting the case of a 32-year old woman who came with a history of a painless, freely mobile lump in the left breast. A clinical diagnosis of a fibroadenoma was made and an excision biopsy was done, which revealed the presence of cysticercus lavae, along with a foreign body giant cell reaction. A diagnosis of cysticercus at the atypical sites is rare and it depends mainly on the histopathological examination. Although it is rare, cysticercus should be considered as a differential diagnosis for a mass in the breast and in the areas of a greater prevalence.