Search Results for: dermatophytosis

Uncommon presentations of tinea versicolor

Uncommon presentations of tinea versicolor

…a R, Bluhm R, Faergemann J. Pityriasis versicolor. Dermatol Clin. 2003;21(3):413-429, v-vi. Mendez-Tovar LJ. Pathogenesis of dermatophytosis and tinea versicolor. Clin Dermatol. 2010;28(2):185-189. Roberts SO. Pityriasis versicolor: a clinical and…

Histologic Diagnosis of Inflammatory Skin Diseases

Linear IgA dermatosis

…gly, but also in intraepidermal pustular dermatitides, such as impetigo, psoriasis (especially the pustular expression), and dermatophytosis, and in suppurative infundibulitides of both infectious and noninfectious types. Acantholytic cells may be…

Differential Diagnosis in Dermatopathology

Lichen sclerosus et atrophicus vs. Chronic radiation dermatitis

Lupus erythematosus (LE) is a multisystem autoimmune connective tissue disease that can have protean effects on the skin. In some patients only the skin is involved, while in others, life-threatening internal complications can arise, ranging from…

Differential Diagnosis in Dermatopathology

Discussions

…gic in sections stained by hematoxylin and eosin. The presence of hyphae in the cornified layer establishes the diagnosis of dermatophytosis. The other five conditions cannot be differentiated histopathologically from one another. Some patients may…

Histologic Diagnosis of Inflammatory Skin Diseases

Leukocytoclastic vasculitis

…atter of hours. Blisters in leukocytoclastic vasculitis, like those of diseases as disparate as allergic contact dermatitis, dermatophytosis, responses to assaults by arthropods, Mucha-Habermann disease, and erysipelas, may be either intraepidermal,…

Histologic Diagnosis of Inflammatory Skin Diseases

Incontinentia pigmenti

…Other diseases marked by large numbers of eosinophils in the epidermis are erythema toxicum neonatorum and rare examples of dermatophytosis. Unlike incontinentia pigmenti, erythema toxicum neonatorum is not a spongiotic dermatitis; it seems to be a…

Histologic Diagnosis of Inflammatory Skin Diseases

Lymphocytoma cutis

…dermatitis Lichenoid purpura of Gougerot and Blum Various inflammatory diseases episodically, as dissimilar as psoriasis and dermatophytosis Findings histopathologic Simulators of B-cell lymphoma Fully developed Nodular and/or diffuse infiltrate…

Differential Diagnosis in Dermatopathology

Discussions

…ted doses for treatment of cutaneous malignancies and, in former times, for inflammatory processes such as acne vulgaris and dermatophytosis. The less common circumstance follows long-term exposures to radiation at lower doses and represents an…

Histologic Diagnosis of Inflammatory Skin Diseases

Pemphigus vulgaris

…perficial perivascular and interstitial mixed-cell infiltrate is a clue to an urticarial lesion of pemphigus vulgaris and to dermatophytosis. Neutrophils are encountered less often than eosinophils in urticarial lesions of pemphigus vulgaris….