title: Off-center fold: multiple papulonodular lesions on the arm. Diagnosis: metastatic melanoma of unknown primary origin.
authors.affiliation: University of Messina, Messina, Italy.
authors.forename: S P
authors.initials: SP
authors.lastname: Cannavò
authors.forename: M
authors.initials: M
authors.lastname: Vaccaro
authors.forename: B
authors.initials: B
authors.lastname: Guarneri
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001132:Arm; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D008545:Melanoma / Q000175:diagnosis* / Q000556:secondary*; D009382:Neoplasms, Unknown Primary / Q000175:diagnosis*; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000556:secondary*