We report the case of a 40-year-old male presented with a painless right testicular swelling. Right radical orchidectomy was performed. The pathological diagnosis was peripheral T-Cell lymphoma-not otherwise specified (PTCL-NOS). According to Ann Arbor staging, the initial clinical stage was IEa. Treating him with four courses of the CHOEP protocol and intrathecal prophylactic chemotherapy was unsuccessful; with the appearance of orbital infiltration and a loco-regional extension. Although the patient started a second line chemotherapy, he unfortunately succumbed to death.
Introductory Chapter: Updates and New Insights from WHO 2017 Peripheral T-Cell Lymphoma Classification