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Original Contribution
August 1973

Rudimentary PolydactylyAn Amputation Neuroma

Author Affiliations

New York
From the departments of dermatology (Drs. Shapiro and Juhlin) and pathology (Dr. Shapiro), College of Physicians and Surgeons, Columbia University, and the departments of dermatology and pathology (Dr. Brownstein), New York Medical College-Metropolitan Hospital Center, New York.

Arch Dermatol. 1973;108(2):223-225. doi:10.1001/archderm.1973.01620230023009
Abstract

Sixteen so-called rudimentary supernumerary fingers were compared with ten true sixth fingers (pedunculated postminimi) and five digital traumatic neuromas. The absence of neural proliferation in true sixth fingers and the histologic similarity of the acquired traumatic neuromas and the "rudimentary supernumerary digits" support the interpretation that the last-named represent neuromas rather than abortive attempts to form a sixth finger.

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