Table of Contents
What is Menzies method?
The Menzies Method is a simplified dermoscopy method for diagnosing melanomas. In the original series it had a sensitivity of 92% and a specificity of 71% for the diagnosis of melanoma.
What is a Dermoscopic image?
Dermoscopy is a convenient tool to diagnose melanocytic lesions, especially nevus and melanoma. Various pigmented structures, including pigment network, dots and globules, and streaks, are observed in dermoscopy. Usually, 2D vertical images are used to explain the correlation of dermoscopy and histopathology.
How accurate is dermoscopy?
The accuracy of diagnosis using in-person visual inspection with dermoscopy was significantly higher than evaluation of dermoscopic images, with a diagnostic odds ratio for in-person dermoscopy more than four times that of the image-based diagnosis (relative diagnostic odds ratio = 4.6; 95% CI, 2.4 to 9.0; P < . 001).
How accurate is a Dermascope?
The sensitivity of dermoscopy has been reported to range from 60% to 100%, depending on, among other factors, the level of experience of the examiners and the diagnostic difficulty of the evaluated lesions. Although dermoscopy improves the diagnostic accuracy for melanoma, it cannot replace histopathologic examination.
How can I learn dermoscopy?
One way to learn dermoscopy is to learn the various geometries and recognise lesions, over time, by pattern recognition. The other way, which is more powerful, is to understand how colours and structures form and assemble to reveal the diagnosis. This is called pattern analysis.
Why is dermoscopy important?
Dermoscopy can also lead to the detection of thinner and smaller cancers. In addition, dermoscopy leads to the more precise selection of lesions requiring excision. In essence, dermoscopy helps clinicians differentiate benign from malignant lesions through the presence or absence of specific dermoscopic structures.
What does a dermoscopy do?
A dermatoscope is a hand-held visual aid device a doctor or person can use to examine and diagnose skin lesions and diseases, such as melanoma. It can also help a person examine the scalp, hair, and nails. A dermatoscope is a common feature at a dermatologist’s office.
How do you describe a dermoscopy?
Dermoscopy is performed with a handheld instrument called a dermatoscope. The procedure allows for the visualization of subsurface skin structures in the epidermis, at the dermoepidermal junction, and in the papillary dermis; these structures are usually not visible to the naked eye [2-4].
Who invented dermoscopy?
A team of physicians led by Professor Otto Braun-Falco in collaboration with the medical device manufacturer HEINE Optotechnik developed a dermatoscope, which was hand-held and illuminated by an halogen lamp. It also featured an achromatic lens with a 10-fold magnification.