Histologic Diagnosis of Inflammatory Skin Diseases

Mycosis fungoides

…being lymphomatoid papulosis, anaplastic large cell lymphoma, adult T-cell lymphoma/leukemia, and some examples of Hodgkin’s disease. Edelson, by introducing the term and concept “cutaneous T-cell lymphoma,” sought to convey that al…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Fibromatoses?

…e) Plantar fibromatosis Penile fibromatosis (Peyronie’s Disease) Fibromatosis colli (congenital wry neck) Progressive myositis fibrosa (hereditary polyfibromatosis) Irradiation fibromatosis” Stout AP. Tumors of the soft tissues. In: Atla…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Histiocytoses?

…derivative of it, appears in the title of no small number of diseases in the skin, among those being histiocytoma, benign cephalic histiocytosis, histiocytosis X, reticulohistiocytic granuloma, histiocytic medullary reticulosis, malignant histiocyto…

Differential Diagnosis in Dermatopathology

Pityriasis lichenoides acuta vs. Pityriasis lichenoides chronica

An inflammatory process caused by the acarus Sarcoptes scabiei and consisting of papules, papulovesicles, papulopustules, and vesicles, some arranged in linear or curvilinear tracks (burrows). Sometimes nodules are present, especially in the interdi…

Differential Diagnosis in Dermatopathology

Discussions

…focal acantholytic dyskeratosis (which is like Darier’s disease histopathologically, but not clinically or biologically), cornoid lamellation (which usually is taken to be a histopathologic sign of porokeratosis), and seborrheic keratosis-like…

Histologic Diagnosis of Inflammatory Skin Diseases

Nodular vasculitis

…ariations clinical Erythema induratum of Bazin (Bazin’s disease, Erythema induratum des Scrofuleux) is reputed to be nodular vasculitis of tuberculous cause Differential diagnosis clinical Erythema nodosum has lesions that do not ulcerate and…

Living with Rosacea

Living with Rosacea

…ted by a number of qualitative and quantitative studies using disease severity instruments such as the Dermatology Life Quality Index (DLQI) and Willingness-to-pay model (Patients, especially women, with rosacea indicate a strong desire or willingnes…

Dermatology Practical & Conceptual

Dermoscopic clues to diagnose acantholytic dyskeratosis

…hologic examination revealed the typical findings of Grover’s disease. Figure 1. (A) Clinical examination of case 1 showed multiple confluent erythematous papules in a patient with Grover’s disease. (B) Clinically, multiple reddish papules were ob…

Histologic Diagnosis of Inflammatory Skin Diseases

Erythema annulare centrifugum

…s Presentation stereotypical Age and sex Middle-aged or older adults of both sexes; children sometimes Distribution of lesions Any part of the skin; the most common sites being the buttocks, thighs, and upper part of the arms Configuration of lesions…

Differential Diagnosis in Dermatopathology

Discussions

…locytes are gone. Short-lived urticaria often is explosive in onset and almost always is allergic in cause. If the patient does not identify the cause (e.g., an ingestant, inhalant, or injected substance), it is unlikely that it ever will be discover…