Recurrent Adult Sacrococcygeal Teratoma Developing Adenocarcinoma: A Case Report and Review of Literatures

Figure 3

Proliferating glandular structures with interspersed vasculature (a); cellular atypia was appreciated at 40X magnification (b). Immunostains of the atypical glandular epithelium were positive for CK7 (c) and CDX2 (d). The Ki67 proliferative index was high (e). The p53 was wild-type (f).

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(b)

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(f)