TY - JOUR
T1 - Patterns of nail matrix and bed of longitudinal melanonychia by intraoperative dermatoscopy
AU - Hirata, Sergio Henrique
AU - Yamada, Sergio
AU - Enokihara, Mauro Yoshiaki
AU - Di Chiacchio, Nilton
AU - De Almeida, Fernando Augusto
AU - Enokihara, Milvia Maria S.S.
AU - Michalany, Nilceo Schwery
AU - Zaiac, Martin
AU - Tosti, Antonella
PY - 2011/8
Y1 - 2011/8
N2 - Background: The dermatoscopic examination of the nail plate has been recently introduced for the evaluation of pigmented nail lesions. There is, however, no evidence that this technique improves diagnostic accuracy of in situ melanoma. Objective: To establish and validate patterns for intraoperative dermatoscopy of the nail matrix. Methods: Intraoperative nail matrix dermatoscopy was performed in 100 consecutive bands of longitudinal melanonychia that were excised and submitted to histopathologic examination. Results: We identified 4 dermatoscopic patterns: regular gray pattern (hypermelanosis), regular brown pattern (benign melanocytic hyperplasia), regular brown pattern with globules or blotch (melanocytic nevi), and irregular pattern (melanoma). Limitations: Nail matrix dermatoscopy is an invasive procedure that can not routinely be performed in all cases of melanonychia. Conclusion: The patterns described present high sensitivity and specificity for intraoperative differential diagnosis of pigmented nail lesions.
AB - Background: The dermatoscopic examination of the nail plate has been recently introduced for the evaluation of pigmented nail lesions. There is, however, no evidence that this technique improves diagnostic accuracy of in situ melanoma. Objective: To establish and validate patterns for intraoperative dermatoscopy of the nail matrix. Methods: Intraoperative nail matrix dermatoscopy was performed in 100 consecutive bands of longitudinal melanonychia that were excised and submitted to histopathologic examination. Results: We identified 4 dermatoscopic patterns: regular gray pattern (hypermelanosis), regular brown pattern (benign melanocytic hyperplasia), regular brown pattern with globules or blotch (melanocytic nevi), and irregular pattern (melanoma). Limitations: Nail matrix dermatoscopy is an invasive procedure that can not routinely be performed in all cases of melanonychia. Conclusion: The patterns described present high sensitivity and specificity for intraoperative differential diagnosis of pigmented nail lesions.
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U2 - 10.1016/j.jaad.2010.06.009
DO - 10.1016/j.jaad.2010.06.009
M3 - Article
C2 - 21531039
AN - SCOPUS:79960390259
VL - 65
SP - 297
EP - 303
JO - Journal of the American Academy of Dermatology
JF - Journal of the American Academy of Dermatology
SN - 0190-9622
IS - 2
ER -