Fig. 2
From: Primary mediastinal clear cell sarcoma: a case report and review of the literature
a The tumour demonstrated expansive growth and infiltrated into the adjacent lung tissue (magnification × 40). b The tumour mainly consisted of epithelioid or polygonal cells arranged in sheets (magnification × 100). c Clusters of tumour cells were set in a fibrous stroma (magnification × 200). d Tumour cells have eosinophilic cytoplasm and oval vesicular nuclei with prominent eosinophilic nucleoli (magnification × 400). e A large necrosis was found (magnification × 100). f There were some melanin-producing tumour cells (magnification × 100)