Phyllodes tumor

Discussion:

The mixed and vascular pattern of the lesion points to a diagnosis of phyllodes tumor and indicate surgical excision.

Mammography is not performed for the young age of the patient and for the benign aspect of the lesion; similarly, core biopsy or FNAC was not performed because the lesion shows a benign aspect but the working diagnosis suggests its surgical excision.

Wide surgical excision is performed and the final histopathology report confirms the diagnosis of benign phyllodes tumor.

Conclusion

On breast ultrasound, the sonographic characteristics between fibroadenoma and phyllodes tumors are commonly overlapping; but the heterogeneous pattern (or the presence of cystic spaces inside a hypoechoic lesion) and the vascular pattern can be helpful to suggest the diagnosis of phyllodes tumor.

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