Pigmented lesions of the genital mucosa are common, affecting between 10% and 20% of the population. The clinical appearance is sometimes confusing. They are often extensive, irregular, and inhomogeneous in color, which can make them look suspicious. Moreover, dermatoscopic imaging is often complex to interpret, as shown by the many different patterns reported in the literature.

Thus, preliminary work in confocal microscopy has shown that it is possible to simplify diagnosis by using microscopic, in vivo, non-invasive imaging. However, CIM cameras are rare, very expensive and difficult to access.

Conversely, digital dermatoscopes with 400x magnification are much less expensive and can also allow, in a certain number of cases, an examination at the cellular level of tumors, with, in our opinion, the advantage of being easy to learn. In the context of the pooling of resources within medical centers in particular, their dissemination should accelerate. Furthermore, x400 dermatoscopy can provide similar information to IVCM for the most frequent black genital tumors.

The hypothesis that motivates this work is that X400 dermatoscopy in the hands of non-experts would allow a fast increase in their diagnostic capacity by identifying the main genital pigmented tumor, namely melanosis, and thus improve the use of expert centers relieved of the care of benign tumors.

Inclusion Criteria:

• Men and women with a pigmented lesion of the genital mucosa, having benefited from a mucosal consultation at the University Hospital of Saint-Etienne, with Professor Perrot.
• The patient's clinical file must contain clinical images, dermatoscopy images x 20 and at least 1 dermatoscopy image x 400.

Exclusion Criteria:

- None

Men and women with a pigmented lesion of the genital mucosa will be included.