title: Idiopathic systemic fibrosis. The simultaneous occurrence of retroperitoneal fibrosis and dismoid tumor.
mesh_terms: D000009:Abdominal Muscles; D005260:Female; D005350:Fibroma / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008875:Middle Aged; D012185:Retroperitoneal Fibrosis / Q000150:complications* / Q000175:diagnosis; D012186:Retroperitoneal Neoplasms / Q000150:complications* / Q000175:diagnosis