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KMID : 0363220110490111014
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Korean Journal of Dermatology
2011 Volume.49 No. 11 p.1014 ~ p.1016
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Isolated Periungual Collagenoma with Longitudinal Groove on the Finger Nail
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Shim Woo-Haing
Song Margaret
Kim Hoon-Soo
Ko Hyun-Chang
Kim Byung-Soo
Kim Moon-Bum
Jwa Seung-Wook
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Abstract
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Isolated collagenoma usually occurs on the plantar area and is frequently associated with Proteus syndrome. A few reports have described isolated collagenoma on extra-plantar areas such as palm, scalp, face, thigh and finger. Herein, we report a case of isolated collagenoma on the periungual area, which was confused with digital mucous cyst. A 26-year-old man visited our clinic with an asymptomatic, 0.8x0.7 cm-sized, firm, skin-colored nodule on the periungual area of the left fourth finger. The distal nail of the nodule showed a longitudinal groove. Histopathologic findings from periungual nodule showed thickened collagen bundles packing reticular dermis.
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KEYWORD
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Isolated collagenoma, Periungual tumor
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