Search Results for: scale

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Histologic Diagnosis of Inflammatory Skin Diseases

Pemphigus foliaceus

…of weeping lesions and crusts, rather than of dry lesions and scales, and by the absence of plugging of infundibula by corneocytes. Findings histopathologic Early Sparse superficial perivascular and interstitial infiltrate of lymphocytes, eosinophils…

Differential Diagnosis in Dermatopathology

Mucha-Habermann disease vs. Secondary syphilis

…ory disease characterized by lesions with arcuate, annular, and serpiginous outlines and by collarettes of scale on the inner margin of lesions that extend outward in centrifugal fashion, disappearing in months as a rule in the absence of treatment….

Dermatology Practical & Conceptual

Large cell acanthoma: a debate throughout the decades

…n dots and globules, yellow opaque homogeneous areas, surface scale and a delicate, light brown, pseudonetwork commonly seen in solar lentigos. The prominent dermoscopic features in a case of ours were a brown, “broken up” pseudonetwork,…

Histologic Diagnosis of Inflammatory Skin Diseases

Gianotti-Crosti disease

…rier’s collections sometimes Focal parakeratosis and/or scale-crusts Late Same as in a lesion developed fully, but with less spongiosis, more acanthosis, and more prominent scale-crusts Correlation clinicopathologic Papules result from spongios…

Histologic Diagnosis of Inflammatory Skin Diseases

Pattern Analysis in Historical Perspective

…layer (e.g., parakeratosis in mounds that house neutrophils, scale-crusts, hyphae). In regard to blistering diseases, an algorithm that achieves its purpose of enabling diagnosis accurately and with specificity can lead off with “vesicular der…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…e, it could be that of acne vulgaris or of rosacea. Mounds of scale-crust at the lips of an infundibular ostium indicate that seborrheic dermatitis is concurrent in this patient. 10.37.8A: Peri-infundibulitis and perifolliculitis, granulomatous + 10….

Histologic Diagnosis of Inflammatory Skin Diseases

Erythema marginatum

…esions that, at their periphery, are topped by collarettes of scale. Urticaria consists of evanescent edematous pink papules and/or plaques that usually are distributed widely and are pruritic. Findings histopathologic Fully developed Superficial per…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…osinophilic pustular folliculitis/papular eruption of HIV The scale-crust is situated at a site where a pustule, housed at first in an infundibulum, had been scratched, a discrete ulcer marking that spot. The perivascular and interstitial infiltrate…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Colors Stereotypical for Diseases Specific?

…White lesions are rare excepting in exfoliative diseases, the scales of which are white. They usually result from loss of pigment. White spot disease, morphea, some of the idiopathic atrophies, syphilitic leucoderma, vitiligo, the peculiar whitish bl…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Cutaneous T-cell Lymphoma?

…iolaceous, or orange; the patches may be surmounted by a fine scale. A somewhat irregular or notched border may help differentiate early CTCL from clinically similar benign dermatoses, as may a discrete area of uninvolved skin within a larger lesion…

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