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The dermatoscopic universe of basal cell carcinoma

The dermatoscopic universe of basal cell carcinoma

…pyright: ©2014 Lallas et al.] Figure 11. Representative examples of the dermatoscopic pattens of different BCC subtypes: (a) superficial, exhibiting superficial fine telangiectasia, multiple small erosions and maple leaf-like areas; (b) nodular,…

Histologic Diagnosis of Inflammatory Skin Diseases

Algorithms Predicated on “Nonspecific” Findings

…infiltrate of lymphocytes = Lichen planus-like keratosis + Cornoid lamellation = Porokeratosis, especially the disseminated superficial actinic type + Sclerosis in a band beneath the epidermis = Lichen sclerosus et atrophicus (superficial morphea)…

Histologic Diagnosis of Inflammatory Skin Diseases

Pattern Analysis in Historical Perspective

…221; now is given its due as a separate, but equal, fundamental pattern. Combining the two different sets of patterns (i.e., superficialsuperficial and deep, intraepidermal-subepidermal vesicular) is logical for these reasons: With few exceptions,…

Spitz and Reed nevi: acquired or congenital?

Spitz and Reed nevi: acquired or congenital?

…lanocytic nevi [18,19,21]. However, in several descriptions of Spitz nevus it has been noted to have features in common with superficial or superficial and deep congenital melanocytic nevi, too [21,22]. In 2000, Harris et al compared congenital and…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus

…seborrheic keratoses, i.e., solar lentigines. In short, just as “solar keratosis” is a synonym for an embryonic (superficial) squamous-cell carcinoma of one type, so, too, is “solar lentigo” a synonym for an embryonic…

Histologic Diagnosis of Inflammatory Skin Diseases

Blood Vessels

…ficial plexus is positioned in the upper part of the reticular dermis, just beneath the papillary dermis. In times past, the superficial plexus was called the “subpapillary plexus.” Those two plexuses, the superficial and the deep, lie…

Histologic Diagnosis of Inflammatory Skin Diseases

Dermatomyositis

…pathologic Swelling of eyelids results from prominent edema of the dermis, telangiectases from widely dilated venules of the superficial plexus, and poikiloderma from a constellation of loss of dermal papillae secondary to sclerosis, subsequent loss…