PMC10485690_01
Various, mixed pattern of GCT: A, B) Microfollicular, trabecular, tubular, diffuse, mimicking carcinoids in some fields, H&E 20x; C) Some parts of tumor are predominantly cystic and filled with clotted blood, H&E 10x; D) All cell expressed estrogen, nuclear positivity 20x; E) All cells expressed progesterone, nuclear positivity 20x
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F1
In the meantime, histopathologic staining of the specimen, provided by ultrasound-guided percutaneous transthoracic biopsy, confirmed the typical, mixed pattern of GCT that was predominantly solid and partly cystic (Fig. 1).