Primary fibroxanthosarcoma of the kidney presenting as fever of unknown origin.
Fibroxanthosarcoma is a tumor of soft tissues, mainly effecting the extremities, mediastinum and retroperitoneum. Primary fibroxanthosarcoma of the kidney is extremely rare and has been described in only 4 cases in the past. We present an additional patient, presenting with continuous spiking fever, with rapid deterioration of her condition due to widespread metastases and death within 4 months.
D005260:Female; D005335:Fever of Unknown Origin / Q000209:etiology*; D005354:Fibrosarcoma / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007668:Kidney / Q000473:pathology; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000473:pathology; D008875:Middle Aged; D009362:Neoplasm Metastasis