ADENOMYOEPITHELIOMA OF THE BREAST - REPORT OF A CASE INITIALLY EXAMINED BY FINE-NEEDLE ASPIRATION

This report describes the morphologic features of an adenomyoepithelio ma of the breast that was first examined by fine-needle aspiration. On retrospective review of the cytology, the stromal elements of this ad enomyoepithelioma showed extensive metachromasia on Diff-Quik stain, h ad elongated nuclei, and on Papanicolaou stain showed elongated, pale, wispy cytoplasm. Clusters of stromal cells were usually intimately as sociated with epithelial elements. While the main differential conside ration, cystosarcoma phylloides, can show similar features, it may be possible to distinguish the two lesions in some instances. (C) 1993 Wi ley-Liss, Inc.