Testicular germ cell tumors: revisiting a series in light of the new WHO classification and AJCC staging systems, focusing on challenges for pathologists

Testicular germ cell tumors (TGCTs) are strikingly heterogeneous, reflecting a complex tumor model, posing serious challenges for pathologists. Accurate classification and staging, according to most recent systems, is fundamental. We aimed to revise a series of consecutively diagnosed TGCTs (2005–2016) in light of the new World Health Organization (WHO) classification and American Joint Committee on Cancer (AJCC) staging systems, discussing dilemmas imposed to pathologists. All 164 patients' clinical files/histological slides were reviewed.

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