Rectal mature teratoma: A case report

Figure 1 A rectal mass. Intestinal round mass was a teratoma.

Figure 2 A rectal mass computed tomography examination. The arrow indicates the 6.3 cm × 4.7 cm × 5.1 cm mass on the left side of the pelvic rectal area.

Figure 3 Postoperative mass resection. The postoperative photograph shows that the white was mass, and the bases were in contact with the rectal area.

Figure 4 Pathology of rectal teratoma. A: Surgical resection of pathological specimens. The mass was completely removed, and a piece was removed every 1 cm. The tissues were then fixed, dehydrated, soaked in wax, embedded, and stained with hematoxylin and eosin staining (HE); B: Rectal teratoma with bone marrow and cartilage (indicated by the arrow) (HE, 4 × 10 magnification); C: Rectal teratoma with squamous epithelium and sebaceous glands (indicated by the arrow) (HE, 4 × 10 magnification); D: Rectal teratoma with brain tissue (HE, 20 × 10 magnification).