Fig. 1From: Radiation-induced fibrosarcoma after breast-conserving therapy for breast cancer: a case report and literature reviewPathology of core needle biopsy suspected fibrosarcoma. Core needle biopsy revealed atypical spindled tumor cells (a) with Vimentin expression highly positive (b). Epithelial markers CK7 (c) and E-cadherin (d) are negativeBack to article page