Regressed Non-metastatic Germ Cell Tumour: A Case Report and Literature Review

Testicular germ cell tumour regression is a rare phenomenon, where the primary testicular tumour spontaneously regresses, typically with metastatic disease at presentation. We present a case of a regressed germ cell tumour (GCT) in a 44-year-old post-pubertal male. Initially treated for suspected infection, the patient's testicular swelling prompted further investigation, leading to a radical orchidectomy that revealed the unusual histomorphologic findings of an entirely necrotic, non-seminomatous GCT consistent with a pure embryonal carcinoma.