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Published on: September 16, 2019
Immunohistochemical profile of intravenous leiomyomatosis
1Department of Pathology, Zeynep Kamil Maternity Hospital, Istanbul, Turkey.
To determine the immunohistochemical staining profile of intravenous leiomyomatosis (IVL), we analysed six IVLs and 12 ordinary leiomyomas (LM) for immunoreactivity with a panel of 11 antibodies. All IVLs and LMs reacted with antibodies to alpha-smooth muscle actin (alphasm), h caldesmon, vimentin and progesterone receptor (PR). Five of six IVLs and all LMs reacted with desmin. All IVLs were negative for CD-10. Only one LM exhibited focal CD-10 positivity. Three of six IVLs and nine of 12 LMs showed estrogen receptor expression. All IVLs and LMs showed immunnegativity with MIB-1 and inhibin. There were not any significant differences between immunoreactivity patterns of IVL and LM for asm, desmin, h caldesmon, CD-10, MIB-1 and PR. We conclude that, although they appear to be useful markers in differentiating IVL from ESS and LMS, a larger study also including ESS and LMS would be necessary to confirm their validity.
To determine the immunohistochemical staining profile of intravenous leiomyomatosis (IVL), we analysed six IVLs and 12 ordinary leiomyomas (LM) for immunoreactivity with a panel of 11 antibodies. All IVLs and LMs reacted with antibodies to alpha-smooth muscle actin (alphasm), h caldesmon, vimentin and progesterone receptor (PR). Five of six IVLs and all LMs reacted with desmin. All IVLs were negative for CD-10. Only one LM exhibited focal CD-10 positivity. Three of six IVLs and nine of 12 LMs showed estrogen receptor expression. All IVLs and LMs showed immunnegativity with MIB-1 and inhibin. There were not any significant differences between immunoreactivity patterns of IVL and LM for asm, desmin, h caldesmon, CD-10, MIB-1 and PR. We conclude that, although they appear to be useful markers in differentiating IVL from ESS and LMS, a larger study also including ESS and LMS would be necessary to confirm their validity.
