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. Author manuscript; available in PMC: 2011 Feb 14.
Published in final edited form as: Diagn Mol Pathol. 2008 Sep;17(3):145–150. doi: 10.1097/PDM.0b013e31815aca19

FIGURE 1.

FIGURE 1

Histologic and immunohistochemical correlates of uterine smooth muscle tumors and their pulmonary counterparts. Panel A is a representative histologic section of a leiomyoma included in this study. The microscopic features are similar to that observed in the uterus (not shown) and lung (panel B), in a woman who had a benign metastasizing leiomyoma that was noted 15 years after the removal of her uterus. Panel C, in comparison, shows the histologic features of a leiomyosarcoma that had metastasized to the lung; note the marked nuclear atypia, disorganized growth pattern, and mitotic figures. Panels D and E show representative areas of the Ki67 data for a leiomyoma (D, arrow) and leiomyosarcoma (E), respectively. The Ki67 results for the pulmonary component of the benign metastasizing leiomyomas (panel F) was equivalent to that for the leiomyomas.