title: Atypical leiomyoma: An unusual variant of cutaneous pilar leiomyoma.
abstract: Cutaneous atypical leiomyoma is an unusual benign tumor arising from arrector pili muscle that shares histological features with uterine atypical or symplastic leiomyoma: atypical cellularity with pleomorphic nuclei but minimal or no mitosis. Six other cases have been reported so far and, in spite of its name and of being a smooth muscle proliferation, no recurrences nor metastasis have been reported.
authors.affiliation: Dermatology Department, Hospital Churruca, Buenos Aires, Argentina. jimenanocito@gmail.com
authors.forename: Mabel Jimena
authors.initials: MJ
authors.lastname: Nocito
authors.forename: María Marcela
authors.initials: MM
authors.lastname: Lustia
authors.forename: Paula Carolina
authors.initials: PC
authors.lastname: Luna
authors.forename: Nadia Guadalupe
authors.initials: NG
authors.lastname: Cañadas
authors.forename: María Laura
authors.initials: ML
authors.lastname: Castellanos Posse
authors.forename: Carolina
authors.initials: C
authors.lastname: Marchesi
authors.forename: Graciela
authors.initials: G
authors.lastname: Carabajal
authors.forename: Miguel Angel
authors.initials: MA
authors.lastname: Mazzini
mesh_terms: D000199:Actins / Q000032:analysis; D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis; D003893:Desmin / Q000032:analysis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000737:chemistry / Q000175:diagnosis / Q000473:pathology*; D007890:Leiomyosarcoma / Q000175:diagnosis; D008940:Mitotic Index; D009363:Neoplasm Proteins / Q000032:analysis; D012878:Skin Neoplasms / Q000737:chemistry / Q000175:diagnosis / Q000473:pathology*
chemical_list: D000199:Actins; D014408:Biomarkers, Tumor; D003893:Desmin; D009363:Neoplasm Proteins