Histologic Diagnosis of Inflammatory Skin Diseases

Ecthyma gangrenosum

…tal observations in 5 cases occurring in adults. Arch Dermatol Syphilol 1932;12:655. Fagge CH. In:Ormsby OS, Montgomery H. Diseases of the Skin. Philadelphia: Lea & Febiger, 1954. Fast M, Woerner S, Bowman W, et al. Ecthyma gangrenosum. Can Med…

Histologic Diagnosis of Inflammatory Skin Diseases

Pernio

…pathologic features and immunologic variables in patients with severe chilblains. A study of the relationship to lupus erythematosus. Medicine (Baltimore) 2001;80:180-88. Ormsby OS, Montgomery H. Diseases of the Skin. Philadelphia: Lea & Febiger,…

Differential Diagnosis in Dermatopathology

Discussions

…and of rosacea have in common localization mostly to the face, suppurative infundibulitis, and a mixed infiltrate of inflammatory cells in the dermis, it containing lymphocytes and plasma cells, and sometimes histiocytes in clusters (granulomas). In…

Histologic Diagnosis of Inflammatory Skin Diseases

Tuberculosis

Tuberculosis Synonyms Lupus vulgaris Presentation stereotypical Age and sex Any age in both sexes, usually adults Distribution of lesions Localized or widespread, depending on the manifestation specific of the disease Individual lesions Papules, pla…

Differential Diagnosis in Dermatopathology

Lichen planus vs. Lichenoid secondary syphilis

…that involves, among other organs, the lungs, lymph nodes, and skin, and the latter in the form usually of papules, sometimes in arcuate and annular configuration, especially on a face, but also on the extremities, and often in pre-existing scars. In…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…the dermis, uncommonly in the lower part alone and/ or in the subcutaneous fat 3. Moderately dense infiltrate of lymphocytes around aggregations of histiocytes 3. Sparse infiltrate of lymphocytes around the aggregations (“naked tubercles&#82…

Differential Diagnosis in Dermatopathology

Acne vulgaris, erythematous papule vs. Rosacea, erythematous papule

…that involves, among other organs, the lungs, lymph nodes, and skin, and the latter in the form usually of papules, sometimes in arcuate and annular configuration, especially on a face, but also on the extremities, and often in pre-existing scars. In…

Differential Diagnosis in Dermatopathology

Discussions

…onema pallidum is particularly effective for demonstrating the spirochetes. When neutrophils are numerous in the epidermis, spirochetes are found teeming there. When epithelioid tubercles are present in the dermis of syphilitic lesions, spirochetes a…

Histologic Diagnosis of Inflammatory Skin Diseases

Acrodermatitis chronica atrophicans

…e. Br J Dermatol 1994;131:687-93. Maraspin V, Ruzic-Sabljic E, Strle F. Isolation of Borrelia burgdorferi sensu lato from a fibrous nodule in a patient with acrodermatitis chronica atrophicans. Wien Klin Wochenschr 2002;114:533-4. Montgomery H, Sulli…