PMC4212673_01
The clinical presentation of the cutaneous thickening with violet discoloration on the anterolateral upper left thigh, just before the biopsy was taken.
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F1
A 9 year old, previously healthy girl, presented with a 2.5 cm circular, blue to violet, slightly elevated discoloration on the upper anterolateral left thigh (Figure 1).
The dermis is replaced by a tumor composed of interwoven bundles of rather uniform, small spindle-cells. The tumor cells insinuate between fat cells in the subcutis (Hematoxylin and Eosin).
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F2
A skin biopsy was taken and histologically, the dermis was replaced by a tumor composed of interwoven bundles of rather uniform, small spindle-cells (Figure 2).
The tumor cells characteristically express CD34.
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F3
Staining with CD34 showed that the tumor cells characteristically expressed CD34 (Figure 3).