Unusually large breast tumour in a middle-aged woman.

Phyllodes tumour is an unusual fibroepithelial tumour of the breast constituting only 0.3% to 0.5% of all breast lesions.1,2 It usually occurs in middle-aged women. The median size of phyllodes tumour is 4 cm; however, 20% of these tumours grow larger than 10 cm and are known as giant phyllodes tumours. We report here a rare case of a middle-aged woman who presented to her family physician with an unusually large breast tumour which measured 24 × 22 × 20 cm in size, weighed 5.5 kg, showed multiple ulcerations, and resulted in gross cosmetic disfigurement. The tumour was subsequently diagnosed as a borderline-grade giant phyllodes tumour. To our knowledge, such a large phyllodes tumour (weighing more than 5 kg) has rarely been reported in the medical literature.