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Surgical Case Reports
Fig. 4 | Surgical Case Reports

Fig. 4

From: Successful surgical management of massive hemoretroperitoneum caused by spontaneous rupture of retroperitoneal lymph node metastases in a patient with advanced mixed germ cell tumor: a COVID-19 pandemic-related surgical challenge

Fig. 4

a Histological section showing immature teratoma composed of undifferentiated cells with foci of primitive neuroectodermic differentiation forming immature neuroepithelial tissue (arrow), in a cellular stroma (hematoxylin and eosin, 20 × magnification). b Immunochemical results demonstrated positivity for S 100 protein and glial fibrillary acidic protein markers, compatible with primitive neuroectodermal tissue (metastases of the teratoma component of the primary mixed GCT), (20 × magnification)

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