Diagnostic instruments commonly used for dermoscopic examination and image acquisition:
The dermoscopic examination can be carried out easily and rapidly with a hand-held dermatoscope providing intra- and sub-epidermal illumination. The spherical, achromatic lens is paired with a bright halogen beam allowing a 10-fold magnification with 100% viewing area in focus. It can be used with or without immersion oil.
Dermaphot is a specially designed lens that, mounted on a conventional or digital reflex camera, permits to take clinical macrophotographs as well as dermoscopic pictures at 10-fold magnification.
The stereomicroscope is an binocular optical instrument providing high quality, three-dimensional visualization of epidermal and subepidermal structures. With the stereomicroscope various magnifications ranging from x6 to x40 can be easily used. The system includes three different light intensities and can be connected to a conventional or digital photocamera as well as to a videocamera for documenting images.
A hand-held, portable stereomicroscope has been recently designed by J. F. Kreusch (Bei der Wasserkunst 15, D-23564 Luebeck, Kreusch-J[email protected]) that is easier to use and less expensive.
This instrument consists of a high resolution color video-camera which is incorporated into the final part of a probe (with or without interchangeable objectives) allowing the indirect visualization of pigmented skin lesions on a monitor. The images can be easily digitized and stored using a personal computer connected to the system.