1. Characterization of Knuckle (Garrod) Pads Using Optical Coherence Tomography In Vivo

    Characterization of Knuckle (Garrod) Pads Using Optical Coherence Tomography In Vivo

    To the Editor: Optical coherence tomography (OCT) is a noninvasive imaging technique that uses a low-power infrared laser light for cutaneous architecture visualization up to 2 mm in depth. Both malignant and nonmalignant lesions on OCT imaging have been correlated with histopathologic analysis. 1 We describe the diagnostic features of knuckle pads on OCT. A 43-year-old-man presented with warts on the right thumb and bilateral feet of several months’ duration with noncontributory medical and social history. Physical examination revealed nontender, well-demarcated, flesh-colored, verrucous papules on the dorsal interphalangeal joints of the right thumb and several toes (Figure 1). Pinpoint vessels ...

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