Search Results for: scale

Histologic Diagnosis of Inflammatory Skin Diseases

Impetigo contagiosa

…show spongiform and subcorneal pustules, and in late lesions, scale-crusts laden with neutrophils. Clinically, bullous impetigo, which is nothing other than a blistering manifestation of impetigo contagiosa, may display both tense and flaccid blister…

Histologic Diagnosis of Inflammatory Skin Diseases

Photoallergic dermatitis

…ongiotic vesicles Cornified layer either normal or covered by scale-crusts Late Superficial or superficial and deep perivascular and interstitial infiltrate of lymphocytes mostly Uneven psoriasiform acanthosis Slight focal spongiosis Scale-crusts Cor…

Dermatology Practical & Conceptual

A keratoacanthoma with venous invasion

…peripherally. It was not tender to palpation and some surface scale was evident. Figure 1. (A) A new raised lesion is present on the left forehead. (B) Close-up imaging reveals central keratin surrounded by a white area, which merges into a pink area…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…also in infundibular and surface epidermis, especially in the scale-crust. This condition, still thought by some authors to be related to Mucha-Habermann disease, is not an inflammatory process, but a CD 30 lymphoma. 11.13.6A: Perivascular and inters…

Histologic Diagnosis of Inflammatory Skin Diseases

Pruritic urticarial papules and plaques of pregnancy

…a in the upper part of the dermis also may contribute. Subtle scale consists of parakeratotic cells. Differential diagnosis histopathologic Urticaria spares the epidermis, and the perivascular and interstitial infiltrate of it contains neutrophils, a…

Histologic Diagnosis of Inflammatory Skin Diseases

Arthropod assaults

…, and sacrum, and by the presence of burrows, as well as both scales and crusts, not just crusts alone. Denominators in common: Erosions secondary to excoriation and signs of lichen simplex chronicus. Features differentiating: Scabies differs clinica…

Histologic Diagnosis of Inflammatory Skin Diseases

Histiocytosis X

…rrheic dermatitis: Denominators in common: Papules covered by scale-crusts. Features differentiating: Histiocytosis X differs clinically from seborrheic dermatitis by presence of purpura in papules. Findings histopathologic Fully developed Dense derm…