SUBUNGUAL MELANOMA

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Subungual melanoma is given a somewhat inconspicuous place in the usual discussion of melanotic tumors. It appears to be a much more common lesion than the small number of reported cases would suggest. In four of the twenty-six patients with melanoma who were treated at the Barnes Hospital, the condition had its origin in the nail-bed. While Hutchinson1was the first to emphasize the lesion and give a lucid description of its clinical characteristics, attention had previously been given to it by other observers.2Hertzler3has recently published a careful review of the previously reported cases, to which he adds two. Since then, Jones4has described three, and Chauvenet and Dubreuilh,5one. I wish to add four, bringing the total of reported cases up to twenty-five. REPORT OF CASES Case 1. —A white laborer, aged 53, was first admitted to Barnes Hospital on Nov. 5,