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A Clinical Atlas of 101 Common Skin Diseases

Bullous Pemphigoid and Herpes Gestationis

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An inflammatory disease of older people; signs include widespread erythematous macules and patches, urticarial papules and plaques, and vesicles and bullae, the blisters often arising on urticarial plaques.

A Clinical Atlas of 101 Common Skin Diseases

Candidiasis

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An inflammatory disease caused by the yeast Candida albicans and manifested clinically as erythematous papules and pustules that may become confluent to form plaques in the case of the former and erosions in the case of the latter.

A Clinical Atlas of 101 Common Skin Diseases

Cysts and Cystic Hamartomas

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Papules, nodules, and tumors that, on gross examination, are usually skin colored and, on histopathologic examination, consist of an epithelium-lined sac that contains fluid, cells, or both in the case of true cysts and of cysts that are associated with other epithelial elements of adnexa in the case of cystic hamartomas.

A Clinical Atlas of 101 Common Skin Diseases

Extramammary Paget’s Disease and Mammary Paget’s Disease

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Extramammary Paget’s disease is an apocrine carcinoma that begins within the epidermis and presents itself clinically as a patch or a subtle plaque that extends centrifugally for many years before becoming a readily discernible thick plaque, a finding that signifies involvement by the carcinoma of the dermis, too.

A Clinical Atlas of 101 Common Skin Diseases

Hemangiomas, Vascular Malformations, and Ectasias

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An hemangioma is a benign neoplasm of blood vessels, a vascular malformation is an aberration in development of one or more major vascular structures, and an ectasia is a dilation of a preexisting end vessel.

A Clinical Atlas of 101 Common Skin Diseases

Herpes Simplex, Zoster, and Varicella

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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 ones, that course along a dermatome of an adult usually, and varicella being characterized by widespread discrete vesicles in children as a rule.

A Clinical Atlas of 101 Common Skin Diseases

Livedo Vasculitis and Livedo Reticularis

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A type of small-vessel vasculitis (venulitis) of the skin, occurring especially in the vicinity of the ankle, characterized at first by purpuric macules and patches that, in time, may become hemorrhagic blisters that ulcerate and heal with white, stellate scars (atrophie blanche).

A Clinical Atlas of 101 Common Skin Diseases

Lymphomatoid Papulosis

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A distinctive type of CD 30 lymphoma characterized by the presence mostly of papules, some of them purpuric, that may ulcerate and heal with a scar, and by lesions that tend to come and go for years, eventually disappearing entirely or, on occasion, becoming nodular and even tumorous, which is an indication of likelihood of detectable lymphomatous involvement of some organs besides the skin.

A Clinical Atlas of 101 Common Skin Diseases

Melanocytic Nevi and Melanotic Macules

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Hamartomas (“congenital” melanocytic nevi) and benign neoplasms (“acquired” melanocytic nevi) of various specific types, all of which are composed of abnormal melanocytes and manifested clinically as lesions of different colors, shapes, and sizes, among them, macules and patches, papules and plaques, and nodules and tumors.

A Clinical Atlas of 101 Common Skin Diseases

Palmar and Plantar Keratoderma

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A keratotic condition of the palms and soles, inherited usually, but sometimes acquired, in which involvement may be diffuse, circumscribed (including striate), or punctate.

A Clinical Atlas of 101 Common Skin Diseases

Pruritic Urticarial Papules and Plaques of Pregnancy

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An inflammatory process in pregnant women near term that consists of urticarial papules and plaques, especially on the trunk and particularly in association with lesions of striae atrophicantes, the lesions disappearing shortly after parturition.

A Clinical Atlas of 101 Common Skin Diseases

Scars, Keloids, and Anetodermas

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A type of fibrosing inflammation characterized clinically by lesions that at first are elevated and that do not extend beyond the exact site of injury and that in time tend to shrink, sometimes even becoming atrophic.

A Clinical Atlas of 101 Common Skin Diseases

Sebaceous Gland Hyperplasia

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An enlargement of normal pre-existing sebaceous lobules on the face, the forehead, cheeks, and nose in particular, that results in lesions seen clinically to consist of a rim of yellow papules around a central dell that represents a dilated ostium of a follicle.

A Clinical Atlas of 101 Common Skin Diseases

Stasis Changes and Venous Ulcers

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Alterations in the skin and subcutaneous fat, such as pigmentation and induration, secondary to the effects of long-term stasis, and ulcers that occur on the lower part of the legs as a consequence of the effects, combined, of incompetent valves of veins and thrombosis within veins situated deep.

A Clinical Atlas of 101 Common Skin Diseases

Lymphomatoid Papulosis

…ce mostly of papules, some of them purpuric, that may ulcerate and heal with a scar, and by lesions that tend to come and go for years, eventually disappearing entirely or, on occasion, becoming nodular and even tumorous, which is an indication of li…

A Clinical Atlas of 101 Common Skin Diseases

Lymphomas (Other Than Mycosis Fungoides and Lymphomatoid Papulosis)

…specially that present themselves usually as papules, nodules, and tumors, sometimes solitary but at other times numerous, and often in clusters on any anatomic site. When "primary," B-cell lymphomas of the skin seem to be wholly cutaneous…

Therapeutic Strategies in Dermatology

Lymphomatoid Papulosis

…specially that present themselves usually as papules, nodules, and tumors, sometimes solitary but at other times numerous, and often in clusters on any anatomic site. When "primary," B-cell lymphomas of the skin seem to be wholly cutaneous…

A Clinical Atlas of 101 Common Skin Diseases

Squamous-Cell Carcinoma

…. When present as a plaque it is termed Bowen’s disease, and when present as many papules in the anogenital region it is called bowenoid papulosis. Solar keratosis, Bowen’s disease, and bowenoid papulosis, as well as arsenical keratosis a…

Histologic Diagnosis of Inflammatory Skin Diseases

Lymphomatoid papulosis

…gic Mixed-cell type, fully developed Wedge-shaped, superficial and deep, perivascular and interstitial mixed infiltrate of small lymphocytes, abnormal lymphocytes and, often, plasma cells, neutrophils, and eosinophils Abnormal lymphocytes with notab…

Differential Diagnosis in Dermatopathology

Nodular scabies vs. Lymphomatoid papulosis

…. When present as a plaque it is termed Bowen’s disease, and when present as many papules in the anogenital region it is called bowenoid papulosis. Solar keratosis, Bowen’s disease, and bowenoid papulosis, as well as arsenical keratosis a…

Differential Diagnosis in Dermatopathology

Interstitial granuloma annulare vs. Interstitial mycosis fungoides

…. When present as a plaque it is termed Bowen’s disease, and when present as many papules in the anogenital region it is called bowenoid papulosis. Solar keratosis, Bowen’s disease, and bowenoid papulosis, as well as arsenical keratosis a…

Therapeutic Strategies in Dermatology

Lymphomatoid Papulosis: Overview

Overview Lymphomatoid papulosis (LyP) is an inflammatory disorder affecting primarily the upper dermal blood vessels. It is characterized by the presence of CD30-positive lymphocytes (sometimes large and atypical) in the dermal infiltrate. Individua…

Therapeutic Strategies in Dermatology

Acne Vulgaris: Initial Evaluation

Initial Evaluation Determine the type, severity, and location of acne, and presence of scarring. Acne lesions Non-inflammatory (comedones) Inflammatory (papules-pustules-nodules) Scars (Keloidal scarring is present on the central ch…

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