title: Primary leiomyosarcoma of the ureter: a case report with electron microscopy.
abstract: We report the twelfth case of primary leiomyosarcoma of the ureter, which is also the first such case studied with transmission electron microscopy. The clinical appearance of this case was that of acute urinary obstruction.
mesh_terms: D005260:Female; D006801:Humans; D007890:Leiomyosarcoma / Q000175:diagnosis* / Q000648:ultrastructure; D008875:Middle Aged; D014516:Ureteral Neoplasms / Q000175:diagnosis* / Q000648:ultrastructure