2020 Volume 56 Issue 1 Pages 71-75
Phyllodes tumour most commonly occurs at the age of 40 and above, accounting for <1% of all breast tumour cases. Thus, there are only a few reported cases of phyllodes tumour in children. Here, we report a paediatric case of recurrent bilateral phyllodes with a discussion of the literature. A 14-year-old girl with no family history of carcinoma, albeit with a history of liver tumour excision at the age of 5 years and tonsillectomy at the age of 8 years, presented to us with a mass on her right breast and was referred to Toho University Omori Hospital. Upon admission, a 4-cm elastic soft tumour was palpated at the outside upper portion of her right breast. On ultrasonography, the tumour appeared well-defined, lobulated, and partially nonhomogeneous from the inside and with multiple small cysts in the solid mass. Lumpectomy was performed. Histopathological examinations revealed benign phyllodes tumour, and its excised margin was negative for tumour cells. About 16 months after the first excision, a new breast mass appeared on both sides, and the mass was excised again. Histopathological examinations revealed benign phyllodes tumour. Since the first surgery, four recurrences occurred and lumpectomy was performed four times. Phyllodes tumour tends to occur multiple times, and approximately 3 to 10% of such cases recur even when the tumour is benign; therefore, a careful follow-up of patients with this tumour is necessary.
