Presentation of a Case Report and Literature Review on Granular Cell Tumour of the Breast

A 21 years old woman presented with a breast swelling of 4 years duration and with an associated pain of a more recent onset. On clinical examination, the mass was found to be firm, mobile and without attachment to the skin or surrounding structures. An excisional biopsy was performed based on a provisional clinical diagnosis of fibroadenoma. However, histological evaluation showed the tumour to be a granular cell tumour. The clinical features of this rare tumour may mimic a variety of conditions and cause a diagnostic dilemma.