title: 38-year-old woman with left flank pain.
authors.affiliation: Mayo Graduate School of Medicine, Mayo Clinic Rochester, MN 55905 USA.
authors.forename: E R
authors.initials: ER
authors.lastname: Ernst
authors.forename: R
authors.initials: R
authors.lastname: Argueta
mesh_terms: D000328:Adult; D001416:Back Pain / Q000209:etiology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008545:Melanoma / Q000150:complications / Q000175:diagnosis / Q000556:secondary / Q000628:therapy; D012186:Retroperitoneal Neoplasms / Q000150:complications / Q000175:diagnosis / Q000473:pathology / Q000628:therapy