By Volker Paech, Hans Schulz, Zsolt Argenyi, Thilo Gambichler, Peter Altmeyer
New technological techniques in dermatologic diagnostics, akin to floor microscopy and dermoscopy, are continually advancing. Anatomical buildings may be considered like by no means sooner than. via those new thoughts the need of a brand new terminology and a brand new set of dermoscopic standards has arise. up to now, many alternative and occasionally complicated phrases were utilized in designating those microscopic gains. notwithstanding, the day-by-day problem physicians face while comparing dermis lesions acquires fast entry to the present dermoscopic nomenclature and definition. This specific consultant presents a finished, present, and exact A-Z encyclopaedia to explain the that means of floor microscopic and dermoscopic terminology together with a vast variety of either melanocytic and non-melanocytic dermis lesions. it's going to help dermatologists, histopathologists and all different physicians in control of a biopsy and excision decision.
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Additional info for Compendium of Surface Microscopic and Dermoscopic Features
In addition, the dermis contains blood and lym phatic vessels, nerves and nerve endings, glands, and, except for glabrous skin, hair follicles. 59), and it may be a predominantly amelanotic lesion. The tumor consists of atypical spin dle-shaped cells with an increased dermal connective tissue component. Surface Microscopy Characteristic melanoma features are absent in most cases. In initial stages there may be an inconspicuous grayish macule or papule with a hypopigmented cen ter. Follow-up examinations of the lesion reveal asym metric growth, border irregularity, and color variabil ity.
In the skin surface red dots indicate the center of the papillae. A thick horny layer of the epi dermis obscures the red dots. The pigment network is a lace-like pattern, which is the result of the rete ridges (constituting the trabeculae) and areas of less dense .. Fig. 56 Normal well-pigmented skin on the dorsum. The “holes” of the pigmented network (areas of little pigment) are due to the dermal papillae. In addition, some hardly visible point-like vessels, representing the terminal capillaries, indicate the site of the papillae 33 ..
Table 4 Epiluminescent microscopic rating protocol for dysplastic nevocellular nevi Characteristic Point value Black dot on blue background 10 Area with evenly arranged capillaries 10 Pseudopod-like structure of the margin 10 Degenerative changes with blue-gray granules in the marginal area 9 Abrupt loss of pigment in the trabeculae 7 Dendritic grayish-blue trabeculae (streaks of melanophages) 6 Bizarre reticular pattern 5 Multicomponent pattern 5 Gray color tone 2 Grayish-blue globules in the center of the papillae 2 Dysplastic nevi may possess many features which are commonly seen in melanoma.