“…2, 3 The incidence of infraclavicular primary tumors reported in the literature is shown in Table 2 2–4. Metastatic testicular seminomas have been reported in diverse organs, including the retroperitoneum and intraperitoneum,5 pancreas,6 stomach,7 duodenum,8 terminal ileum,9 kidney,10 ureter,11 cervical lymph node,12 palatine tonsil,13 cervicothoracic spine,14 sphenoid sinus,15 pericardium,16 orbit,17 temporal bone,18 jaws,19 thyroid,20 and vertebral extradura 21…”