Fig. 6.
Histology: Haematoxylin and eosin, spindle-shaped cells with the “patternless pattern” (panel a, b). Immunohistochemistry: the cells were positive for vimentin (panel c), CD34 (panel d), CD99 (panel e) and STAT6 (panel f)
Histology: Haematoxylin and eosin, spindle-shaped cells with the “patternless pattern” (panel a, b). Immunohistochemistry: the cells were positive for vimentin (panel c), CD34 (panel d), CD99 (panel e) and STAT6 (panel f)