title: [Brown tumor as an exceptional origin of lumbocruralgia with favourable outcome].
abstract: BACKGROUND
  We report a case of a particular lumbar and radicular pain revealing primary hyperparathyroidism and discuss its characteristics through a literature review.
  
  
  METHODS
  A 55-year-old woman was hospitalized for a nerve root pain associated with recent weight loss with normal physical examination. Biology showed no evidence for acute phase response and normal kidney and liver functions. However, hypercalcemia and hypophosphatemia were evidenced. Radiographs of the lumbar spine showed a lytic lesion occupying the body of L4. A lumbar spine CT scan confirmed the presence of a compressive nerve root brown tumor. High level of PTH and parathyroid mass raised the possibility of the diagnosis of primary hyperparathyroidism. After parathyroidectomy all signs of hyperparathyroidism resolved with complete disappearance of spinal brown tumors in a two year follow-up CT scan.
  
  
  CONCLUSIONS
  Although uncommon, brown tumor should be a diagnosis to consider in their presence of a spinal tumor. The improvement after conservative treatment could be dramatic.
authors.affiliation: Faculté de médecine, université Tunis El Manar, Tunis, Tunisie; Service de rhumatologie, hôpital Charles-Nicolle, Tunis, Tunisie. Electronic address: nefmhd@yahoo.fr.
authors.forename: I
authors.initials: I
authors.lastname: Mahmoud
authors.affiliation: Faculté de médecine, université Tunis El Manar, Tunis, Tunisie; Service de rhumatologie, hôpital Charles-Nicolle, Tunis, Tunisie.
authors.forename: A
authors.initials: A
authors.lastname: Andia
authors.affiliation: Faculté de médecine, université Tunis El Manar, Tunis, Tunisie; Service de radiologie, hôpital Mongi Slim, La Marsa, Tunisie.
authors.forename: I
authors.initials: I
authors.lastname: Marzouk
authors.affiliation: Faculté de médecine, université Tunis El Manar, Tunis, Tunisie; Service de rhumatologie, hôpital Charles-Nicolle, Tunis, Tunisie.
authors.forename: O
authors.initials: O
authors.lastname: Saidane
authors.affiliation: Faculté de médecine, université Tunis El Manar, Tunis, Tunisie; Service de rhumatologie, hôpital Charles-Nicolle, Tunis, Tunisie.
authors.forename: K
authors.initials: K
authors.lastname: Maatalah
authors.affiliation: Faculté de médecine, université Tunis El Manar, Tunis, Tunisie; Service de rhumatologie, hôpital Charles-Nicolle, Tunis, Tunisie.
authors.forename: R
authors.initials: R
authors.lastname: Tekaya
authors.affiliation: Faculté de médecine, université Tunis El Manar, Tunis, Tunisie; Service de rhumatologie, hôpital Charles-Nicolle, Tunis, Tunisie.
authors.forename: L
authors.initials: L
authors.lastname: Abdelmoula
mesh_terms: D005260:Female; D006801:Humans; D049950:Hyperparathyroidism, Primary / Q000175:diagnosis / Q000601:surgery; D008159:Lumbar Vertebrae / Q000473:pathology*; D008875:Middle Aged; D010002:Osteitis Fibrosa Cystica / Q000473:pathology*; D010281:Parathyroid Hormone / Q000097:blood; D016105:Parathyroidectomy / Q000379:methods; D013122:Spinal Diseases / Q000473:pathology*; D014057:Tomography, X-Ray Computed
chemical_list: D010281:Parathyroid Hormone
keywords: Brown tumor; Hyperparathyroidism; Hyperparathyroïdie; Spine neoplasm; Tumeur brune; Tumeur rachidienne