PMC3687376_01
Malignant spindle cell neoplasm forming either long and storiform fascicles or haemangiopericytoma-like texture
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Ultrasound controlled core-needle biopsy revealed malignant spindle cell neoplasm forming either long and storiform fascicles or haemangiopericytoma-like texture (Fig. 1).
The tumour cells are characterized by numerous pleomorphic cells and significant mitotic activity (up to 2-3 mitotic figures in one HPF) (Fig. 2). The tumour cells dyed positively with antibodies against vimentin (strong diffuse cytoplasmic reaction), CD68 and desmin (positive reaction in single cells) (Fig. 2. Insert)
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The tumour cells dyed positively with antibodies against vimentin (strong diffuse cytoplasmic reaction), CD68 and desmin (positive reaction in single cells) (Fig. 2.