title: Gray state Ultrasonography in retroperitoneal lymphangiomyomatosis.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008202:Lymphangioma / Q000175:diagnosis*; D008479:Mediastinal Neoplasms / Q000175:diagnosis; D009130:Muscle, Smooth / Q000473:pathology; D009214:Myoma / Q000175:diagnosis*; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis; D014463:Ultrasonography