Search Results for: scars

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Histologic Diagnosis of Inflammatory Skin Diseases

Mucha-Habermann disease

…papules, purpuric and necrotic papules, vesicles, ulcers, and scars Course Sometimes transient, i.e., weeks, or lesions coming and going for years Variations clinical Pityriasis lichenoides acuta consists of red and purple papules that may show signs…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Palpable Purpura?

…ting of reddish papules, scaly papules, vesicles, ulcers, and scars, often displays purpuric papules. The papules are formed mostly by infiltrates of lymphocytes around venules of both vascular plexuses and along the dermoepidermal junction. The purp…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ondition is termed “atrophie blanche” because the scars are white. 10.62.3A: Vasculitis, small-vessel type, mixed-cell + 10.62.3B: Thrombi in the lumen of many venules and in the wall of some of them, neutrophils, lymphocytes, and a few p…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Parapsoriasis?

…ules, vesicles, some of which may be hemorrhagic, ulcers, and scars. When lesions of Mucha-Habermann disease develop slowly (pityriasis lichenoides chronica), pink, nonpurpuric, scaly papules predominate. For decades, authors of textbooks of dermatol…

Histologic Diagnosis of Inflammatory Skin Diseases

Behçet’s Disease

…les tend to ulcerate and to heal with atrophic hyperpigmented scars. Findings histopathologic Infiltrate of lymphocytes around venules in the reticular dermis and the subcutaneous fat Neutrophils with variable amounts of nuclear “dust” of…

Differential Diagnosis in Dermatopathology

Photoallergic dermatitis vs. Phototoxic dermatitis

Conditions caused by infection with different strains of herpesvirus and typified when fully developed by tense vesicles, herpes simplex consisting of grouped vesicles on an erythematous base, zoster being made up of vesicles, sometimes hemorrhagic…

Differential Diagnosis in Dermatopathology

Discussions

…followed by fibroplasia, they tend to resolve with depressed scars. Like all other manifestations of discoid lupus erythematosus, lupus profundus is evidence of a systemic disease. The sclerotic mummified panniculus adiposus so characteristic of the…

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