Fig. 2From: Prolactin-producing pituitary adenoma with atypical spindle cell morphology: a case reportH&E staining of prolactinoma. Pleomorphic ovoid tumor cells in dense and disorderly proliferation (a); atypical multinucleated giant cells and prominent nucleoli seen in higher magnification (b); proliferation of spindle cells with elongated nuclei and prominent nucleoli (c); hyalinized vessel walls as frequent finding (d)Back to article page