A Case of a Rare Testicular Tumor With Synchronous Malignancy

Figures

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  FIGURE 1. Lateral view of left testis with scrotal ultrasound demonstrating (A) heterogeneous testicular lesion (yellow arrow), (B) hypervascularity of the lesion, and (C) microlithiasis (yellow arrow). The scale bar is 1.0 cm.

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  FIGURE 2. Histopathological findings of a Leydig cell tumor (LCT) (A) 1× magnification of a 1.5 cm LCT confined to the testis. (B) 20× magnification of the LCT with abundant eosinophilic granular cytoplasm and round nuclei with prominent nucleoli. (C) 1× magnification of the LCT stained with Inhibin A revealing diffuse positive cytoplasmic staining throughout the tumor. (D) 1× magnification of the LCT stained with calretinin with diffuse positive nuclear and cytoplasmic staining throughout the tumor. (E) 20× magnification of GCNIS in seminiferous tubules, exhibiting cells with abundant clear cytoplasm, hyperchromatic nuclei with prominent nucleoli lining the tubule, and a lack of spermatogenic maturation. (F) 40× magnification of a Reinke's crystalloid (black arrow).

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  FIGURE 3. CT chest demonstrating a 5.9 × 9.7 × 10.4 cm heterogeneous soft tissue mass of the right anterior mediastinum in coronal and sagittal views.