A slightly erythematous, firm papule on the upper arm--quiz case.
Zand
Sarvenaz
S
Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Lio
Peter A
PA
Mackool
Bonnie T
BT
Duncan
Lyn M
LM
D000368:Aged; D001132:Arm; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D018328:Melanoma, Amelanotic / Q000473:pathology* / Q000601:surgery; D021701:Sentinel Lymph Node Biopsy; D012878:Skin Neoplasms / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome