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A Clinical Atlas of 101 Common Skin Diseases

Atypical Mycobacterial Infections

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Infection of skin and subcutaneous tissue by atypical mycobacteria, that is, mycobacteria other than those responsible for tuberculosis and leprosy, expressed clinically as keratotic and crusted papules, plaques, nodules, and tumors that may be punctuated by draining sinuses and by ulcers.

A Clinical Atlas of 101 Common Skin Diseases

Basal-Cell Carcinoma

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A malignant neoplasm made up of abnormal germinative cells analogous to those that compose the folliculosebaceous-apocrine germ in an embryo and that usually manifests clinically as a papule or nodule which may become ulcerated.

A Clinical Atlas of 101 Common Skin Diseases

Deep Fungal Infections

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Cutaneous and subcutaneous lesions, usually nodules, that have become keratotic, crusted, and ulcerated as a consequence of infection by a variety of deep fungi, i.e., fungi situated in the dermis and subcutis, some of which may be disseminated to other organs.

A Clinical Atlas of 101 Common Skin Diseases

Keratosis Pilaris/Lichen Spinulosus

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Keratotic spikes that emerge from dilated ostia of infundibula and are equidistant from one another.

A Clinical Atlas of 101 Common Skin Diseases

Seborrheic Keratosis, Including Solar Lentigo

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A benign neoplasm of keratinocytes that consists of pigmented macules, papules, and plaques distributed on sun-exposed sites for a solar lentigo and the reticulated type of seborrheic keratosis, which represents a later stage of solar lentigo, and on the trunk mostly for other types of seborrheic keratosis unrelated to solar lentigo.

A Clinical Atlas of 101 Common Skin Diseases

Squamous-Cell Carcinoma

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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.

A Clinical Atlas of 101 Common Skin Diseases


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A benign neoplasm of apocrine ductal nature within the upper half of the dermis that manifests itself clinically as tiny, smooth, skin-colored, round or oblong papules that usually are situated in periorbital skin, but may be seen on other sites, such as the neck or genitalia, or even be widespread.

A Clinical Atlas of 101 Common Skin Diseases

Tinea Versicolor

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An inflammatory disease caused by the fungus Malassezia furfur, the organisms of which proliferate in a slightly thickened stratum corneum.

A Clinical Atlas of 101 Common Skin Diseases

Xanthomas, Including Xanthogranulomas

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Deposits of lipid in the skin and sometimes in subcutaneous tissues as a consequence often, but not always, of hyperlipidemia.

Therapeutic Strategies in Dermatology

Warts: Treatment

…6 weeks to induce mild to moderate irritation will clear warts in about 50% of patients. Shaving over warts in the beard area or on the legs with a razor blade tends to spread the lesions. Males with warts in the beard, and women with warts on the le…

Therapeutic Strategies in Dermatology

Warts: Clinical Cases

Clinical Cases Case 1 18-year-old healthy male No significant past medical history Presents for management of painful wart on foot Initial evaluation Healthy appearing male Left foot: on the plantar aspect of the hallux, there is a 2 cm endoph…

Therapeutic Strategies in Dermatology

Folliculitis (including pseudofolliculitis barbae): Clinical Cases

…t of 7 days’ history of a pustular eruption on the face Initial evaluation Healthy appearing male Scattered papules and pustules on the chin, upper cutaneous lip, and cheeks Analysis of the pustular contents in the clinic does not reveal any…

Therapeutic Strategies in Dermatology

Pyoderma Gangrenosum: Clinical Cases

…g ulcer that rapidly developed over the past four days without inciting trauma Currently using antibiotic ointment daily covered by a bandage Reports rapid progression of the ulcer Initial evaluation Thin, tired-appearing male Left leg ulcer that i…

Therapeutic Strategies in Dermatology

Alopecia: Clinical Cases

…iciency, or anemia A family history is notable for “male pattern baldness” in several male siblings, her father, and her mother A scalp examination is performed; there is almost 50% reduction in hair density in the frontal and parietal sc…

Therapeutic Strategies in Dermatology

Alopecia: Treatment

…ntial, reversible side effect. Finasteride should only be used in healthy males and in women who are not of childbearing potential. Hair transplantation is an excellent therapy in appropriate patients and can often be combined with surgical scalp red…

Therapeutic Strategies in Dermatology

Alopecia: Key Points

…an autoimmune disorder (such as alopecia areata) chemotherapy induced (such as anagen effluvium) scalp inflammation (leading to scarring alopecia, such as in lupus or lichen planus) hormonal (such as androgenetic alopecia men and women or hyperandro…

A Clinical Atlas of 101 Common Skin Diseases


Loss of hair attributable either to the effects of inflammatory cells on follicles or to physiological or mechanical factors in which inflammatory cells play no role. Although the scalp is the site most often affected, any region of the skin that be…

Therapeutic Strategies in Dermatology

Lichen Planus: Key Points

…to severe pruritus. It affects 0.5-2% of the population, with women more commonly affected than men (3:1 female to male ratio in one study), presenting typically between the fourth and sixth decade of life. Lesions of lichen planus may present acros…

Therapeutic Strategies in Dermatology

Gonorrhea and Disseminated Gonococcemia: Overview

…Treatment First Steps For uncomplicated urethral and cervical infection: Intramuscular ceftriaxone 125 mg in one dose. For anal gonorrhea in women, standard treatments are effective, but in men who have sex with men, ceftriaxone should be used (not…

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