Search Results for: cysts

A Clinical Atlas of 101 Common Skin Diseases

Rosacea

A papular and pustular inflammatory process that is centered in follicles and is distributed mostly in the middle third of the face in both vertical and horizontal directions. Among the varied manifestations of rosacea are innumerable…

A Clinical Atlas of 101 Common Skin Diseases

Nevus Sebaceus

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…

A Clinical Atlas of 101 Common Skin Diseases

Acne Vulgaris

…aceous units, especially infundibula, that may manifest itself solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve without residua or with…

Therapeutic Strategies in Dermatology

Acne Vulgaris: Treatment

Treatment Mild to moderate acne First-line therapy (comedonal acne only): topical retinoid First-line therapy (mild inflammatory acne): topical retinoid alone, topical retinoid + topical antimicrobial Topical retinoids are considered first line…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eruptive Vellus Hair Cyst?

…ct. In this setting, these cysts may represent a hybrid form of steatocystoma multiplex. Other forms of eruptive vellus hair cysts may represent follicular cysts of the infundibular or isthmus-catagen type. Mixed types of cysts that incorporate…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Epidermal Cyst and Epidermoid Cyst?

…d in 1949, until the last (7th) edition published in 1990, Walter Lever considered wens, sebaceous cysts, milia, and dermoid cysts to be “cysts of the epidermis.” In reality, nearly all primary cysts in skin are related to adnexal…

Differential Diagnosis in Dermatopathology

Discussions

…inflammation, and, last, fibrosis. Historically, follicular cysts of the isthmus-catagen type have been called tricholemmal cysts, pilar cysts, sebaceous cysts, and wens. The lining of isthmus-catagen cysts is the same as that of the outer sheath…

Differential Diagnosis in Dermatopathology

Infundibular cyst vs. Isthmus-catagen cyst

…aceous units, especially infundibula, that may manifest itself solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve without residua or with…

Differential Diagnosis in Dermatopathology

Trichoadenoma vs. Microcystic adnexal carcinoma

…aceous units, especially infundibula, that may manifest itself solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve without residua or with…