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Subungual Osteochondroma

A Diagnostic Dilemma

Tolga Tuzuner, MD ^*, Ayse Kavak, MD , Ali Haydar Parlak, MD  and Nil Ustundag, MD, PhD 

^* Department of Orthopaedics, Duzce Medical School, Abant Izzet Baysal University, Duzce, Turkey.
Department of Dermatology, Duzce Medical School, Abant Izzet Baysal University, Duzce, Turkey.
Department of Pathology, Duzce Medical School, Abant Izzet Baysal University, Duzce, Turkey.

Corresponding author: Tolga Tuzuner, MD, Department of Orthopaedics, Duzce Medical School, Abant Izzet Baysal University, Konuralp-Duzce, Duzce 81620, Turkey.

Abstract

Osteochondroma is the most common skeletal neoplasm of all benign bone tumors. However, it rarely occurs subungually. In this location, the lesion may penetrate the skin, causing nail deformity, and can easily be misdiagnosed. We report two cases of subungual osteochondroma of the distal phalanges of the first toes with cutaneous penetration and discuss the clinical, histologic, and radiographic features and the treatment options. (J Am Podiatr Med Assoc 96(2): 154–157, 2006)