title: Parotid lymph node metastasis from adenocarcinoma of the urachus.
abstract: The parotid gland and its lymph nodes are frequent sites of metastases from head and neck cancers. However, metastasis from a distant primary below the clavicle is unusual. These originate from a variety of sites, most commonly the lung, kidney and breast. A case of a 59-year-old woman with parotid lymph node metastasis from an adenocarcinoma of the urachus, diagnosed on the basis of two discrete periparotid masses on CT and the patient's history, is presented.
authors.affiliation: Department of Oral Surgery, Saitama Medical Center, Saitama Medical School, Kawagoe, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Shimoyama
authors.forename: N
authors.initials: N
authors.lastname: Horie
authors.forename: T
authors.initials: T
authors.lastname: Yamada
authors.forename: F
authors.initials: F
authors.lastname: Ide
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary*; D001859:Bone Neoplasms / Q000556:secondary; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis / Q000000981:diagnostic imaging / Q000473:pathology*; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000473:pathology; D010307:Parotid Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D010386:Pelvic Neoplasms / Q000556:secondary; D012186:Retroperitoneal Neoplasms / Q000556:secondary; D014057:Tomography, X-Ray Computed; D014497:Urachus / Q000002:abnormalities* / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000473:pathology*