Journal of the American Academy of Dermatology · 2017
Accuracy of dermatoscopy for the diagnosis of nonpigmented cancers of the skin.
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Sinz Christoph, Tschandl Philipp, Rosendahl Cliff, Akay Bengu Nisa, Argenziano Giuseppe, Blum Andreas, Braun Ralph P, Cabo Horacio, Gourhant Jean-Yves, Kreusch Juergen, Lallas Aimilios, Lapins Jan, Marghoob Ashfaq A, Menzies Scott W, Paoli John, Rabinovitz Harold S, Rinner Christoph, Scope Alon, Soyer H Peter, Thomas Luc, Zalaudek Iris, Kittler Harald
Аннотация
BACKGROUND: Nonpigmented skin cancer is common, and diagnosis with the unaided eye is error prone.
OBJECTIVE: To investigate whether dermatoscopy improves the diagnostic accuracy for nonpigmented (amelanotic) cutaneous neoplasms.
METHODS: We collected a sample of 2072 benign and malignant neoplastic lesions and inflammatory conditions and presented close-up images taken with and without dermatoscopy to 95 examiners with different levels of experience.
RESULTS: The area under the curve was significantly higher with than without dermatoscopy (0.68 vs 0.64, P < .001). Among 51 possible diagnoses, the correct diagnosis was selected in 33.1% of cases with and 26.4% of cases without dermatoscopy (P < .001). For experts, the frequencies of correct specific diagnoses of a malignant lesion improved from 40.2% without to 51.3% with dermatoscopy. For all malignant neoplasms combined, the frequencies of appropriate management strategies increased from 78.1% without to 82.5% with dermatoscopy.
LIMITATIONS: The study deviated from a real-life clinical setting and was potentially affected by verification and selection bias.
CONCLUSIONS: Dermatoscopy improves the diagnosis and management of nonpigmented skin cancer and should be used as an adjunct to examination with the unaided eye.
OBJECTIVE: To investigate whether dermatoscopy improves the diagnostic accuracy for nonpigmented (amelanotic) cutaneous neoplasms.
METHODS: We collected a sample of 2072 benign and malignant neoplastic lesions and inflammatory conditions and presented close-up images taken with and without dermatoscopy to 95 examiners with different levels of experience.
RESULTS: The area under the curve was significantly higher with than without dermatoscopy (0.68 vs 0.64, P < .001). Among 51 possible diagnoses, the correct diagnosis was selected in 33.1% of cases with and 26.4% of cases without dermatoscopy (P < .001). For experts, the frequencies of correct specific diagnoses of a malignant lesion improved from 40.2% without to 51.3% with dermatoscopy. For all malignant neoplasms combined, the frequencies of appropriate management strategies increased from 78.1% without to 82.5% with dermatoscopy.
LIMITATIONS: The study deviated from a real-life clinical setting and was potentially affected by verification and selection bias.
CONCLUSIONS: Dermatoscopy improves the diagnosis and management of nonpigmented skin cancer and should be used as an adjunct to examination with the unaided eye.