Search Results for: lichenoid

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…he cells in the infiltrate being too pale. The two most common patterns of secondary syphilis at a stage developed fully are lichenoid, such as pictured here, and psoriasiform lichenoid. Lymphocytes do not predominate in secondary syphilis; plasma…

Histologic Diagnosis of Inflammatory Skin Diseases

Algorithms Predicated on “Nonspecific” Findings

…acanthosis = Lichen planus + Focal parakeratosis, focal hypergranulosis, lymphocytes along the dermoepidermal interface, and lichenoid infiltrate of lymphocytes = Lichen planus-like drug eruption + Remnant of solar lentigo/seborrheic keratosis and…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus-like keratosis

…ed on sites exposed to sunlight. Bibliography Bibliography for lichen planus-like keratosis Berger TG, Graham JH, Goette DK. Lichenoid benign keratosis. J Am Acad Dermatol 1984;11:635-38. Frigy AF, Cooper PH. Benign lichen keratosis. Am J Clin…

Differential Diagnosis in Dermatopathology

Discussions

…llagen, as well as by infiltrate of lymphocytes, but no siderophages are visualizable; hardly ever are melanophages noted in lichenoid purpura. The lichenoid purpura of Gougerot-Blum is one of three variants histopathologic of persistent purpuric…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…Degos” disease), which, in most persons who bear it, also is a manifestation of lupus erythematosus. Error: Pityriasis lichenoides et varioliformis acuta and pityriasis lichenoides chronica are different diseases with similar names. Reason:…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…three patterns being present here. Perifolliculitis is common in lichen striatus. 10.61.5A: Perivascular dermatitis, patchy lichenoid, and peri-infundibulitis, lichenoid + 10.61.5B: Predominance of lymphocytes = Lichen striatus Because a lesion of…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…particular changes, pictured, are invariable at the dermoepidermal junction. 10.63.37A: Perivascular dermatitis, interface, lichenoid + 10.63.37B: Obscuration of the dermoepidermal junction by lymphocytes and vacuolar alteration in company with a…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen striatus

…ocytes predominate includes a plaque of mycosis fungoides. Unlike lichen striatus, however, that disease is not a spongiotic lichenoid dermatitis, but is a spongiotic lichenoid dermatosis, i.e., a lymphoma. Although necrotic keratocytes may be…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Overlap Syndromes?

…discoid lupus erythematosus and lichen planus, the lesions actually are those of lichenoid discoid lupus erythematosus; the lichenoid infiltrate of lymphocytes, the jagged hyperplasia of the epidermis, and the hyperkeratosis merely resemble…