title: [Atypical intradermal smooth-muscle neoplasm].
abstract: BACKGROUND
  We report herein a case of atypical intradermal smooth-muscle neoplasm.
  
  
  METHODS
  A 58-year-old man presented with a painless pinkish-white chest nodule ongoing for two years. Histopathology revealed a proliferation of intradermal smooth-muscle cells. Some atypia and 5 mitoses were seen in the most mitotic fields. The histopathologist suggested a diagnosis of "atypical intradermal smooth-muscle neoplasm".
  
  
  CONCLUSIONS
  Atypical intradermal smooth-muscle neoplasm is part of a spectrum extending from skin leiomyoma to leiomyosarcoma. The prognosis consists chiefly in risk of local recurrence. The terminology is not currently accepted by WHO but nevertheless offers an alternative to inappropriate diagnosis of sarcoma, which carries psychological and social impact.
authors.affiliation: Centre hospitalier universitaire Amiens-Picardie, place Victor-Pauchet, 80054 Amiens, France. Electronic address: attencourt.christophe@chu-amiens.fr.
authors.forename: C
authors.initials: C
authors.lastname: Attencourt
authors.affiliation: Cabinet de dermatologie, 190, rue Saint-Fuscien, 80000 Amiens, France.
authors.forename: D
authors.initials: D
authors.lastname: Thuillier
authors.affiliation: Centre hospitalier universitaire Amiens-Picardie, place Victor-Pauchet, 80054 Amiens, France.
authors.forename: F
authors.initials: F
authors.lastname: Lombart
authors.affiliation: Centre de pathologie Amiens-Picardie, 51, rue Jeanne-d'Arc, 80000 Amiens, France.
authors.forename: T
authors.initials: T
authors.lastname: Petit
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012878:Skin Neoplasms / Q000473:pathology* / Q000601:surgery; D018235:Smooth Muscle Tumor / Q000473:pathology* / Q000601:surgery; D013909:Thorax / Q000473:pathology; D016896:Treatment Outcome
keywords: Atypical intradermal smooth-muscle neoplasm; Cutaneous leiomyosarcoma; Léiomyosarcome cutané; Tumeur musculaire lisse atypique dermique