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Fingernail and nailbed abnormalities in four patients with NF1 and glomus tumor. Split nail of left F4 in Leu-3 (A). Reddish discoloration at radial side of left F3 in Leu-5 at the location of the tumor (B). Swelling on radial side of right F4 of Leu-4 (C). Swelling and nail deformation in left F4 in Leu-8 (D).
