Myoblastic myoma was first described in 1926. Immunohistochemical methods have proven the neuroectodermal origin of this tumour. It most frequently affects individuals between 30 and 60 years of age, with a significant female predominance. In most cases it is a benign solitary tumour, with multiple lesions found in 25% of cases. The malignant variant of the tumour is diagnosed in less than 3% of cases. This case report of a 30-year-old woman describes the appearance of a solid resistance between her breasts following delivery of her child, with similar findings on the neck and wrists. Histopathological examination confirmed the presence of a benign variant of myoblastic myoma.