Sinonasal teratocarcinosarcoma involving the nasal cavity, unilateral paranasal sinuses, and intracranial invasion: A case report

Figure 1 Pathological analysis of a sinonasal teratocarcinosarcoma. A: Low magnification of hematoxylin-eosin stain showing the overall variegated appearance (40 ×); B: Glandular epithelial structures were seen within the tumor as well as focal nested squamous epithelial components, with translucent cytoplasm and no keratinization (100 ×); C: Localized patchy glandular epithelium structures were seen in localized lesion location (100 ×); D: Under high magnification, tumor cells exhibited significant heterogeneity, with readily observable nuclear division figures (400 ×).