Differential Diagnosis in Dermatopathology

Apocrine mixed tumor vs. Eccrine mixed tumor

A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary lesio…

A Clinical Atlas of 101 Common Skin Diseases

Syringoma

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, su…

Therapeutic Strategies in Dermatology

Seborrheic Dermatitis: Initial Evaluation

Initial Evaluation Erythematous, scaly, oily-looking patches on the face (nasolabial folds, medial cheeks, chin, glabella, forehead) and thick crust on the scalp are typical affected areas. Seborrheic dermatitis can also present…

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

Livedo Vasculitis/Livedo Reticularis/Atrophie Blanche: Overview

Atrophie Blanche, Livedoid Vasculitis – Segmental, and Hyalinizing Vasculitis – Summer/Winter Ulcerations This group of terms applies to a condition affecting primarily the lower extremities resulting in ulceration. Affected patients are…

Therapeutic Strategies in Dermatology

Hand Dermatitis: Treatment

Treatment First-line therapy: The first-line therapy for hand dermatitis is to stop any offending agents. The mainstay of treatment is the use of topical medications in conjunction with frequent use of moisturizers. The approach to the management…

Therapeutic Strategies in Dermatology

Rosacea: Subtypes of Rosacea and Their Treatment

Erythemato-telangiectatic (E-T) subtype: Characterized by diffuse erythema and telangiectasias on the cheeks, forehead, dorsal nose, or entire face. Patients often complain of intolerance or sensitivity to topical products and cosmetics. This subty…

Therapeutic Strategies in Dermatology

Appendigeal Tumors: Overview

Adnexal Tumors Both benign and malignant tumors may arise from the cutaneous adnexa (hair follicles, sweat glands, and sebaceous glands). First Steps A biopsy is usually necessary to establish the diagnosis, except for syringomas. Surgical or laser…

Therapeutic Strategies in Dermatology

Rosacea: Key Points

Key Points Rosacea has 4 different clinical presentations: erythemato-telangiectatic, papulo-pustular, phymatous, and ocular. It is essential to correctly identify the subtype of rosacea in order to select the appropriate medical or surgical therap…