Mass-like extragonadal endometriosis associated malignant transformation in the pelvis: A rare case report

Figure 1 Computed tomography, magnetic resonance imaging and macroscopic appearance of the mass in the pelvic cavity (white arrow). A: Axial computed tomography image; B: Coronal T2-weighted image; and C: Photographs of the incised uterus and the pelvic mass.

Figure 2 Microscopic findings of the hematoxylin-and-eosin-stained sections of the mass. A: Malignancy and endometrium in a visual field, 50 ×; B: Other features of the mass, 50 ×; C: Characteristics of adenocarcinoma in low differentiation, 100 ×; D: Typical endometrial epithelium and stroma, 100 ×; E: Characteristic of clear cell adenocarcinoma, 100 ×; and F: Appearance of endometrioid carcinoma, 100 ×.