Authored by: Aimilios Lallas
|Description||DermoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections. of parasitosisThis glossary term has not yet been described.|
|Responsible author||Aimilios Lallas → send e-mail|
|Status update||September 12, 2017|
|Status by||Ralph P. Braun|
User=scabiesThis glossary term has not yet been described. consists of small dark brown triangular structuresThis glossary term has not yet been described. located at the end of whitish structureless lines (curved or wavy), giving an appearance reminiscent of a delta-wing jet with contrail (Fig 9a). Microscopically, the brown triangle corresponds to the pigmented anterior part of the mite, while the burrow of the mite correlates dermoscopically to the contrail feature. Since then, the value of dermoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections. in diagnosisis the identification of the nature and cause of a certain phenomenon. Diagnosis is used in many different disciplines with variations in the use of logic, analytics, and experience to determine "cause and effect". In systems engineering and computer science, it is typically used to determine the causes of symptoms, mitigations, and solutions of scabies has been extensively investigated in several studies. The diagnostic accuracyThis glossary term has not yet been described. of the technique was reported to be at least equal to traditional ex-vivo microscopic examination (i.e. skin scraping), while additional comparative advantages of dermoscopy include its non-invasiveness and lower requirements in terms of time, costs and experience. Nowadays, dermoscopy has replaced ex-vivo microscopy as the routine method for diagnosis of scabies in several dermatology centers. Additional to its value for diagnosis, dermoscopy may also be useful in treatment monitoring, heralding treatment success when dermoscopic ‘jet with contrail’ features can no longer been detected.
Cutaneous larva migransis a skin disease in humans, caused by the larvae of various nematode parasites of the hookworm family (Ancylostomatidae). The most common species causing this disease in the Americas is Ancylostoma braziliense. These parasites live in the intestines of dogs, cats, and wild animals and should not be confused with other members of the hookworm family for which humans are definitive hosts, namely Ancylostoma duodenale and Necator americanus.Dermoscopy has been shown to facilitate the clinical recognition of larva migransThis glossary term has not yet been described. (creeping eruption), by revealing translucent brownish structureless areas in a segmental arrangementThis glossary term has not yet been described., corresponding to the body of the larva.pediculosisThis glossary term has not yet been described. by revealing the lice itself or the nits fixed to the hair shaft (Fig 9b).Nits containing vital nymphs dermoscopically display ovoid brown structures, while the empty nits are translucent and typically show a plane and fissured free ending. This information is particularly useful for treatment monitoring, since dermoscopic detection of vital nits should lead to a continuation or modification of therapy. Additionally, dermoscopy has been recently shown to enable the discrimination between nits and the so-called pseudo-nits, such as hair casts, debris of hair spray or gel. The latter are not firmly attached to the hair shaft and appear dermoscopically as amorphous, whitish structures.skinThis glossary term has not yet been described., while a brown to grey translucent ‘shield’ with pigmented streakslines radial (always at periphery) streaks Reed nevus melanoma recurrent nevus corresponds to the tick’s body (Fig 9d). Following the removal of the tick, detection of brown to black to grey areas of pigmentation by dermoscopy indicates incomplete removal.
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