Primary mesonephric adenocarcinoma of the fallopian tube: A case report

Figure 2 Immunohistochemical staining of fallopian tube-mesonephric adenocarcinoma. A: PAX8 expression in this case was strong and diffuse, indicating that the tumor arose from the female genital tract; B: GATA3 positivity is helpful in confirming the diagnosis of mesonephric carcinoma, but the staining may be weak and focal. In the present case, the staining for GATA3 was weak and diffuse; C: CD10 revealed cytoplasmic and luminal staining; D: Immunohistochemical staining for thyroid transcription factor-1 was strong and diffuse; E and F: Immunohistochemistry showed totally negative staining for Calretinin (E) and Wilms' tumour-1 (F).