Intestinal Adenocarcinoma Arising from a Mature Cystic Teratoma

Figure 2

(a) Low power view of teratoma showing skin, glandular epithelium, and cartilage. There is infiltration of malignant glands within the cyst wall (H&E ×40). (b) Transition of benign squamous epithelium to dysplastic surface glandular epithelium and underlying invasive atypical glands with intraluminal dirty necrosis. (c) Invasive glands lined by intestinal-type epithelium and containing intraluminal necrosis. (d) Perineural invasion of infiltrating glands.

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