Fig. 2From: Dermatofibrosarcoma protuberans – the use of neoadjuvant imatinib for treatment of an uncommon breast malignancy: a case reportPathologic microscopy and staining pattern of the biopsy specimen. a Section of the right breast mass biopsy showing spindle cell proliferation arising from the interface between the dermis and subcutis and sparing the dermis b. Immunostained sections of the biopsy specimen demonstrate uniform positivity of the spindle cells for CD34Back to article page