title: Pyrexia associated with a retroperitoneal tumour.
mesh_terms: D000328:Adult; D005334:Fever / Q000209:etiology*; D006801:Humans; D007431:Intraoperative Complications / Q000209:etiology*; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000601:surgery*; D012509:Sarcoma / Q000601:surgery*