PMC5904780_01
Neurofibromas and cafe au lait spots on the skin.
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fig1
We detected common skin nodules on his whole body, particularly on his torso in physical examination (Figure 1).
Spindle cell lesion in resection specimen (H&E stain, 100x). No atypia, left inset (H&E stain, 200x). Positive expression with smooth muscle actin immunohistochemistry, right inset (100x).
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fig2
Immunohistochemistry was positive for smooth muscle actin (SMA) and vimentin (Figure 2).
Mass on the left wall of bladder and ureter dilatation. The arrow shows the dilatation of ureter.
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fig3
CT revealed grade 3 left hydroureteronephrosis and a tumor formation of 6 x 3.5 cm extending from the left lateral wall to the anterior wall of the bladder (Figure 3).