Search Results for: eruptive%20psoriasis

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A Clinical Atlas of 101 Common Skin Diseases

Xanthomas, Including Xanthogranulomas

Deposits of lipid in the skin and sometimes in subcutaneous tissues as a consequence often, but not always, of hyperlipidemia. The lipid deposits are expressed as yellowish papules and plaques, and nodules and tumors.

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eruptive Vellus Hair Cyst?

…tinctive histologic features.” Ohtake N, Kubota G, Takayama O, et al. Relationship between steatocystoma multiplex and eruptive vellus hair cysts. J Am Acad Dermatol 1992;26:876-878. “Eruptive vellus hair cyst (EVHC), steatocystoma…

Differential Diagnosis in Dermatopathology

Granuloma annulare vs. Eruptive xanthoma

Deposits of lipid in the skin and sometimes in subcutaneous tissues as a consequence often, but not always, of hyperlipidemia. The lipid deposits are expressed as yellowish papules and plaques, and nodules and tumors.

A Clinical Atlas of 101 Common Skin Diseases

Psoriasis

Psoriasis is a chronic, immune-mediated polygenic skin disorder affecting approximately 2% of the population. The pathogenesis of psoriasis features an interplay between adaptive and innate immunity centered on interleukin 23 and T-helper 17 cells…

A Clinical Atlas of 101 Common Skin Diseases

Squamous Cell Carcinoma

A malignant neoplasm of keratinocytes that when present as a keratotic macule or papule on skin damaged badly by sunlight is referred to as solar keratosis. When present as a plaque it is termed Bowen’s disease, and when present as many…

Histologic Diagnosis of Inflammatory Skin Diseases

Xanthomas

…ar as some examples of lepromatous leprosy and of xanthogranulomas, and to those that are not, as unalike as xanthelasma and eruptive xanthoma. True xanthomas are not an inflammatory process; they represent a response by macrophages to deposits of…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…s in zones of parakeratosis = Mucha-Habermann disease, acute Many erythrocytes extravasated in the epidermis are expected in eruptive lesions of Mucha-Habermann disease, as is the case in nearly all eruptive inflammatory diseases of the skin….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Histiocytoses?

…disorders (CD1a-, S100-, macrophage marker+) Xanthogranuloma (juvenile and adult) Benign cephalic histiocytosis Generalized eruptive histiocytomas Xanthoma disseminatum Papular xanthoma Reticulohistiocytoma Multicentric reticulohistiocytosis…

Differential Diagnosis in Dermatopathology

Discussions

…cous membranes, especially those of the oral cavity. An underlying abnormality of serum lipids is identified in persons with eruptive xanthomas, and that abnormality always includes hypertriglyceridemia. Hyperlipidemia type I is associated most…

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