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A Clinical Atlas of 101 Common Skin Diseases

Amyloidosis

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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 systemic disease like myeloma.

A Clinical Atlas of 101 Common Skin Diseases

Amyloidosis

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 syst…

Histologic Diagnosis of Inflammatory Skin Diseases

Macular and papular (lichenoid) amyloidosis-Cutaneous solely

Macular and papular (lichenoid) amyloidosis—Cutaneous solely Presentation stereotypical Age and sex Women of Asian, Latin, or Middle Eastern ancestry usually Distribution of lesions Macular form most common in the interscapular region, but also seen…

Therapeutic Strategies in Dermatology

Seborrheic Dermatitis: Key Points

Key Points Seborrheic dermatitis is a chronic intermittent rash typically affecting the face, ears, scalp, and trunk. It is marked by an erythematous papular or macular eruption often with greasy yellow scale, sometimes accompanied by pruritus. Thi…

Therapeutic Strategies in Dermatology

Kaposi’s Sarcoma: Overview

Overview Kaposi’s sarcoma (KS) results from endothelial cell proliferation caused by infection with human herpesvirus 8 and occurs in four settings: classic KS, African (endemic) KS, immunosuppressive-associated KS, and AIDS-associated KS. The…

Differential Diagnosis in Dermatopathology

Lichen amyloidosis vs. Colloid milium

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 syst…

Therapeutic Strategies in Dermatology

Prurigo Nodularis: Overview

Overview Prurigo nodularis is a morphologic lesion that is a consequence of severe and repeated scratching of one area. In most patients it is secondary to an underlying pruritic condition such as photo sensitive dermatitis, renal failure, or neurop…

Therapeutic Strategies in Dermatology

Actinic Keratosis (a.k.a. Solar Keratosis): Clinical Cases

Clinical Cases Few lesions of actinic keratosis 72-year-old woman presents with a 3-month history of several new lesions on the dorsal hands She reports increasing scale and crusting of the lesions, noting that the crusting sloughs intermittentl…

Therapeutic Strategies in Dermatology

Vascular Birthmarks: Key Points

Key Points Vascular birthmarks are cutaneous vascular lesions present at, or shortly after, birth. They may be categorized as vascular tumors or vascular malformations. The term hemangioma has previously been used to describe many common, typicall…

Therapeutic Strategies in Dermatology

Erythema Multiforme: Key Points

Key Points Erythema multiforme (EM) is a clinical syndrome marked by either target lesions and/or mucosal erosions. It may be idiopathic or seen in association with infections or medications. EM has been reported in association with herpes simplex…

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