Fig. 3From: Relevance of frozen sections and serum markers in invasive squamous cell carcinoma arising from ovarian mature cystic teratoma: two case reportsGross findings and microscopic findings of case 2. a The wall of the cyst is thickened (arrow). b The cut surface of the cyst shows nodular protrusions. c A hematoxylin and eosin-stained section of the nodular area shows the boundary between the dysplastic keratinocytes lining the cyst internally, and the invasive squamous cell carcinoma (arrow) (× 100)Back to article page