Gabriela Sieberova

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Dermatofibrosarcoma protuberans (DFSP) is a relatively common soft-tissue tumor. A more aggressive appearing fibrosarcoma may arise in DFSP, changing its biological behavior. CD34 and apolipoprotein-D are highly expressed in DFSP, but their prognostic significance is uncertain. DFSP and fibrosarcomatous-DFSP (FS-DFSP) patients referred to our institute(More)
BACKGROUND AND AIM Rarely sarcomas develop in previous benign lesions, after a long term disease free interval. We report the experience on these rare cases observed at a single Institution. PATIENTS AND METHODS 12 cases curetted and grafted, without radiotherapy developed sarcomas, between 1970 and 2005, 6.5-28 years from curettage (median 18, average(More)
The authors describe a case of recurrent malignant epitheloid schwannoma of the lower lip. Histologically, the tumor was composed of fibroblast-like spindle cells in compact fascicles and areas of epitheloid growth, combined with demonstration of S-100, GFAP and NF positivity, which is characteristic for this type of tumor. The therapy consisted of a(More)
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