Two Rare Cases of Uterine Leiomyosarcomas Originating from Submucosal Leiomyomas Proved by Their Immunohistochemistry Profiles

Abstract

The most common mesenchymal tumours of the uterine corpus originate from smooth muscle cells. Leiomyomas arecommonly found in women of child bearing age; however, leiomyosarcomas occur later in life (50-55 years of age).Most uterine leiomyosarcomas occur de novo, but rare cases of leiomyosarcomas that arise from leiomyomas havebeen reported. We present two cases of fertile women with submucosal leiomyomas that became malignant and discusstheir pathologic features and immunohistochemistry studies for P16, P53 and Ki67.

Keywords

• immunohistochemistry
• leiomyoma
• leiomyosarcoma
• uterus