title: [Tumoral sarcoidosis].
abstract: BACKGROUND
  We report here an unusual tumoral form of cutaneous sarcoidosis which lead to diagnostical difficulties.
  
  
  METHODS
  A 56 year-old woman was hospitalized for a large lumbo-sacral tumor which size had rapidly increased. The tumor was purplish-red, firm, measured 10 x 20 cm and the patient was unable to sit normally. The biopsies demonstrated a dermohypodermal epithelioid and giant cell granuloma without necrosis. We ruled out an infectious granuloma and a foreign body granuloma. There were no extra-cutaneous localizations. This sarcoidal tumor cured with systemic corticosteroids.
  
  
  CONCLUSIONS
  Tumoral cutaneous forms of sarcoidosis are uncommon; 3 other cases of the literature are reported. Before to state positively this forms it is obligatory to rule out all the other aetiologies of sarcoidal granuloma. The existence of extra-cutaneous localizations and multiple skin localizations is helpful to diagnose this uncommon type of sarcoidosis.
authors.affiliation: Service de Dermatologie de l'Hopital Pasteur, Colmar.
authors.forename: A
authors.initials: A
authors.lastname: Koessler
authors.forename: E
authors.initials: E
authors.lastname: Grosshans
authors.forename: F
authors.initials: F
authors.lastname: Samain
authors.forename: C
authors.initials: C
authors.lastname: Runser
authors.forename: F
authors.initials: F
authors.lastname: Bernard
authors.forename: E
authors.initials: E
authors.lastname: Heid
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D012507:Sarcoidosis / Q000175:diagnosis*; D012871:Skin Diseases / Q000175:diagnosis*; D012878:Skin Neoplasms / Q000175:diagnosis; D014057:Tomography, X-Ray Computed
vernacular_title: Sarcoidose tumorale.