15yo patient from Dong thap province. For one month there was a small lump which was about one finger at right breast but it was getting bigger rapidly, and painless.
Right breast mass presented hypoechoic pattern, nearly took entirely breast volume, # 8cm x 10cm, hypervascular. Upon breast US the mass was inhomogenous, increasing diastolic phase and decreasing RI=0.37.
Mammo and MRI= Phyllod tumor or huge fibrosarcoma (BIRADS 3-4).
Core biopsy and immunohistostaining result: Malignant phyllod tumor or sarcoma of myxoid cellular stroma.
Radical mastectomy was done. Microscopic result was poor differentiated sarcoma.
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