PMC5903091_01
The patient presented with a large painless soft-tissue mass. The picture was taken after incisional biopsy.
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F1
A 5-year-old girl presented to an outpatient clinic with a painless mass in her left lower limb that had slowly enlarged since she was 3 months old (Fig. 1).
T1-weighted axial (a) and STIR coronal (b) MR images showed heterogeneous intensity, containing mainly fat and also fibrous tissue.
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F2
MRI revealed a 24 x 37 x 35 cm soft-tissue mass located at the lower left leg (Fig. 2).
Hematoxylin and eosin staining, high-power magnification (x100), showing a fibrous and fatty lesion infiltrating skeletal muscle.
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F3
The microscopic histopathology finding showed an admixture of mature adipose tissue and fibroblastic elements, revealing lipofibromatosis (Fig. 3).