By Ashfaq A Marghoob, Josep Malvehy, Ralph P Braun
Building on a winning first variation, this revised and prolonged Atlas of Dermoscopy demonstrates the state-of-the-art of ways to exploit dermoscopy to become aware of and diagnose lesions of the outside, with a different emphasis on malignant pores and skin tumours. With good over 1,500 photos, drawings, and tables, the booklet has broad medical correlation with dermoscopic photographs, so readers can savor the additional merits of dermoscopy by way of evaluating the medical morphology visible with the bare eye with the corresponding dermoscopic morphology; huge illustrations from the picture collections of across the world famous specialists, who've years of expertise refining their thoughts; and broad schematic drawings to aid readers unmarried out the main buildings and styles to acknowledge within the dermoscopic images.
The moment variation has vital new fabric on such subject matters as saw variations among polarized and non-polarized dermoscopy, newly famous buildings and styles, subtle and revised feedback for development research, dermoscopy of the hair and nails, and the way to combine dermoscopy into common medical perform. It additionally covers dermoscopically equivocal, fake detrimental, and fake optimistic lesions; discusses extra symptoms for dermoscopy past pores and skin melanoma; and info universal checklists of standards and algorithms used to diagnose dermis lesions.
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Additional info for An Atlas of Dermoscopy, Second Edition
9). 6. Ulceration. These structures consist of shallow erosions that may be covered with congealed blood. They can also appear to have an orange hue if covered with a serous crust. It is important to rule out a previous history of trauma for ulceration to be a valid feature (Fig. 10). Knowledge of the histologic features of pigmented BCCs assists in correlating the dermoscopic structures to the histopathology structures. Under routine microscopic examination, BCC tumors are seen as clusters or islands of basaloid cells found in the dermis or the dermoepidermal junction.
Streaks in melanocytic lesions always radiate in a direction pointing away from the main pigmented tumor mass and they radiate toward and into normal skin. In addition, streaks in a melanocytic lesion appear to converge towards the geometric center of the lesion, which is often hyperpigmented and has a blue-white veil. In contrast, extensions seen in leaf-like structures tend to be broader and often appear “fuzzy” (Fig. 4a and b) They do not have to be located at the lesion’s perimeter and they do not always have to radiate away from the main tumor mass toward normal skin (Fig.
A blue-white veil, which does not occupy the entire lesion, can be seen. , 2007). With that being said, if some of these structures are present, then the lesion is probably a seborrheic keratosis. A word of caution is warranted here regarding milia cysts. , 2011). Thus, milia cysts should be considered a diagnostic criterion only after insuring that the lesion is not a melanocytic lesion or a basal cell carcinoma. If none of the seborrheic keratosis criteria are seen then one needs to proceed to Level 4.
An Atlas of Dermoscopy, Second Edition by Ashfaq A Marghoob, Josep Malvehy, Ralph P Braun