Search Results for: scale-crust

Melanocytic nevi and melanoma: overlapping criteria—the degree is the key

Melanocytic nevi and melanoma: overlapping criteria—the degree is the key

…rmoepidermal within the upper spinous layers, nuclear crowding with atypia in areas especially with excoriation, ulceration, scalecrust, or scarring. Accordingly, in view of the foregoing, it is essential to be knowledgeable of special sites,…

Histologic Diagnosis of Inflammatory Skin Diseases

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…nd perifolliculitis shown is not specific, but were it on a face, it could be that of acne vulgaris or of rosacea. Mounds of scalecrust at the lips of an infundibular ostium indicate that seborrheic dermatitis is concurrent in this patient….

Histologic Diagnosis of Inflammatory Skin Diseases

Phaeohyphomycosis

…are formed of suppuration joined by granulomatous inflammation that, in time, is followed by fibrosis. Epidermal changes of scalecrust result from parakeratosis accompanied by plasma and neutrophils. Dematiaceous (black) fungi may be present as…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…and interstitial infiltrate containing numerous eosinophils = Eosinophilic pustular folliculitis/papular eruption of HIV The scalecrust is situated at a site where a pustule, housed at first in an infundibulum, had been scratched, a discrete ulcer…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Chondrodermatitis Nodularis Helicis?

…chondrodermatitis nodularis helicis, consist of papules or nodules, and they tend to become eroded, ulcerated, fissured, and crusted, also as a result of the external trauma. As might be expected, the constellation of papular and nodular lesions…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…eic dermatitis, not only because the biopsy specimen did not come from the face or chest, but because there are no mounds of scalecrust at lips of the infundibular ostium. A subtle “plug” of corneocytes is present in the infundibular…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Colors Stereotypical for Diseases Specific?

…rangement of lesions, pertain to characteristics morphologic of individual lesions themselves: changes in the surface (e.g., scale or crust); the outline of lesions (e.g., polygonal or oblong); and consistency, as judged by palpation (e.g.,…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…exuberant manifestation of pemphigus vulgaris in which countless eosinophils are present in a thickened epidermis covered by scalecrust. At scanning magnification, aspects of pemphigus vulgaris are not apparent; higher magnification is required to…

Hypopigmented atypical Spitzoid neoplasms (atypical Spitz nevi, atypical Spitz tumors, Spitzoid melanoma): a clinicopathological update

Hypopigmented atypical Spitzoid neoplasms (atypical Spitz nevi, atypical Spitz tumors, Spitzoid melanoma): a clinicopathological update

…0-yr-old girl. Clinically (A) the lesion is firm red nodule with a central depression. Dermoscopically (B), a central yellow crust could resemble the umbilication of a molluscum contagiosum; however, vessels around the crust are atypical; in…