case_images: PMC5509184_01
case_images: PMC5509184_02
case_images: Multiple cysts lined by a single layer of low cuboidal epithelia are seen. The tumor cells contain atypical hyperchromatic nuclei (hobnail cells). Intraluminal secretion is also seen (hematoxylin and eosin stain, x100)
case_images: TCMJ-29-55-g001.jpg
case_images: PMC5509184_02_TCMJ-29-55-g001.jpg
case_images: F1
case_images: Microscopically, the tumors were composed of cysts of varying sizes lined by a single layer of flattened or cuboidal cells with atypical hyperchromatic nuclei with a clear cytoplasm [Figure 1].
case_images: Tumor cells with hyperchromatic and pleomorphic nuclei and conspicuous nucleoli are seen (hematoxylin and eosin stain, x400)
case_images: TCMJ-29-55-g002.jpg
case_images: PMC5509184_02_TCMJ-29-55-g002.jpg
case_images: F2
case_images: Marked nuclear atypia with pleomorphism and prominent nucleoli was noted [Figure 2].
case_images: Benign ectopic endometrial glands can be identified at the arrow (hematoxylin and eosin stain, x40)
case_images: TCMJ-29-55-g003.jpg
case_images: PMC5509184_02_TCMJ-29-55-g003.jpg
case_images: F3
case_images: Residual ectopic endometrial glands with stromal cells were observed [Figure 3].