title: An unusual case of psoas muscle ossification due to metastatic carcinoma.
mesh_terms: D000368:Aged; D001859:Bone Neoplasms / Q000473:pathology; D002295:Carcinoma, Transitional Cell / Q000150:complications*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications*; D008159:Lumbar Vertebrae; D009135:Muscular Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D009362:Neoplasm Metastasis; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging / Q000209:etiology*; D012186:Retroperitoneal Neoplasms / Q000150:complications / Q000473:pathology; D014056:Tomography, X-Ray