Search Results for: acanthosis nigricans

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A Clinical Atlas of 101 Common Skin Diseases

Acanthosis Nigricans

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Pigmented plaques formed by confluence of smooth-surfaced soft papules, some of which may become polypoid, traversed by accentuations of skin folds.

A Clinical Atlas of 101 Common Skin Diseases

Acanthosis Nigricans

Pigmented plaques formed by confluence of smooth-surfaced soft papules, some of which may become polypoid, traversed by accentuations of skin folds. This disease has a predilection for intertriginous regions. The condition may develop consequent to…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Benign, Pseudo, or Malignant Acanthosis Nigricans?

…adolescent period. When adolescence is over, the dermatosis either regresses or remains stationary.” “Malignant acanthosis nigricans can occur in children. Most of the patients, however, show the first signs as adults. Cutaneous…

Differential Diagnosis in Dermatopathology

Nevus verrucosus vs. Acanthosis nigricans

Pigmented plaques formed by confluence of smooth-surfaced soft papules, some of which may become polypoid, traversed by accentuations of skin folds. This disease has a predilection for intertriginous regions. The condition may develop consequent to…

Therapeutic Strategies in Dermatology

Oral Hairy Leukoplakia: Key Points

…appearance. Biopsy reveals characteristic histopathologic features including epithelial hyperkeratosis with papillomatosis, acanthosis, and ballooning degeneration within the epidermis. Viral changes can also be noted and also detected by…

A Clinical Atlas of 101 Common Skin Diseases

Seborrheic Dermatitis

An inflammatory process that consists of tiny papules covered by prominent scales and localized typically to the “seborrheic region,” namely, scalp, forehead, eyebrows, malar eminences, paranasal and nasolabial folds, and retroauricular…

A Clinical Atlas of 101 Common Skin Diseases

Preface

…so tried diligently to eschew incorrect concepts and to refrain from perpetuating them, such as the myth that three types of acanthosis nigricans exist—benign, pseudo-, and malignant; the typing of melanoma as lentigo maligna, superficial spreading,…

Differential Diagnosis in Dermatopathology

Discussions

…thickened pale-staining papillary dermis. Whereas nevus verrucosus is fundamentally an epidermal nevus with a rough surface, acanthosis nigricans is basically a connective tissue nevus with a smooth surface. Nevus verrucosus is but one of many…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ion may simulate complete regression of melanoma. 11.11.8A: Perivascular dermatosis, lichenoid + 11.11.8B: Lymphocytes only, acanthosis, hypergranulosis, and hyperkeratosis = Lichen planus-like keratosis, late The changes at the periphery shown here…

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