Search Results for: lichenoid

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Histologic Diagnosis of Inflammatory Skin Diseases

Images

…oped Predominance of histiocytes in the center of this infiltrate qualifies it as granulomatous. The discrete nature of this lichenoid granulomatous process makes this lichen nitidus. 10.59.3A: Perivascular dermatitis, interface, focally lichenoid +…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ts that a drug could well have been the cause. Eosinophils hardly ever are seen in Mucha-Habermann disease, i.e., pityriasis lichenoides acuta and chronica. 10.25.3A: Perivascular dermatitis, interface, lichenoid, and perifolliculitis, lymphocytic +…

Differential Diagnosis in Dermatopathology

Discussions

…of papular lichen planus because the blister forms so quickly that the lesion has no chance to become developed fully, i.e., lichenoid as a consequence largely of a band of lymphocytes. Other lichenoid infiltrates of lymphocytes that must be…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…nic These findings pictured represent a slowly evolving lesion of Mucha-Habermann disease, one that is designated pityriasis lichenoides chronica. The correlate clinical is scaly papules, unlike in pityriasis lichenoides acuta, in which the…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…hery of a zone of peri-infundibular fibroplasia, and wedge-shaped hypergranulosis in an infundibulum = Traction alopecia The lichenoid infiltrate of lymphocytes also extends along the isthmus of the follicle. Initially the lichenoid infiltrate…

Differential Diagnosis in Dermatopathology

Lichen planus vs. Lichen planus-like keratosis

A condition in which deposits of a fibrillary protein (amyloid) appear in the skin as macules, papules, and nodules consequent to the effects of local factors, or as patches (which may be purpuric), plaques, nodules, and tumors as a result of a…

Histologic Diagnosis of Inflammatory Skin Diseases

Persistent light reaction

…s Slight compact orthokeratosis and, at times, parakeratosis Correlation clinicopathologic Papules result mostly from patchy lichenoid infiltrates of inflammatory cells in company with acanthosis. Scale consists of orthokeratosis and parakeratosis….

Differential Diagnosis in Dermatopathology

Discussions

…id infiltrates of lymphocytes besides lichen planus and discoid lupus erythematosus (for example, lichenoid photodermatitis, lichenoid drug eruptions, lichenoid purpura of Gougerot and Blum, and lichen planus-like keratosis), only lichenoid discoid…

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